Schedule of Portfolio Investments	Limited Duration Fund
May 31, 2021 (Unaudited)

Shares or Principal Amount		Security Description	Value
Asset Backed Securities (24.5%)
$	2,434,071	AccessLex Institute, Series 2007-A, Class A3, 0.45% (US0003M + 30 bps), 5/25/36, Callable 5/25/23 @ 100*	$	2,400,914‌
	897,358	Asset Backed Securities Corp. Home Equity Loan Trust, Series 2006-HE1, Class A4, 0.71% (US0001M + 30 bps), 1/25/36, Callable 6/25/21 @ 100*		894,881‌
	922,497	Bayview Financial Mortgage Pass-Through Trust, Series 2005-C, Class M3, 1.09% (US0001M + 65 bps), 6/28/44, Callable 6/28/21 @ 100*		924,414‌
	302,309	Cazenovia Creek Funding II LLC, Series 2018-1A, Class A, 3.56%, 7/15/30(a)		303,748‌
	1,048,169	CDC Mortgage Capital Trust, Series 2002-HE1, Class A, 0.71% (US0001M + 62 bps), 1/25/33, Callable 6/25/21 @ 100*		1,041,836‌
	1,250,449	CIT Mortgage Loan Trust, Series 2007-1, Class 1A, 1.44% (US0001M + 135 bps), 10/25/37, Callable 9/25/24 @ 100*(b)		1,256,555‌
	245	Citigroup Mortgage Loan Trust, Inc., Series 2005- WF1, Class A5, 5.01%, 11/25/34, Callable 6/25/21 @ 100*(c)		246‌
	228	Countrywide Asset-Backed Certificates, Series 2002-S1, Class A5, 6.46%, 5/25/32, Callable 6/25/21 @ 100*(c)(d)		227‌
	1,338,370	Countrywide Asset-Backed Certificates, Series 2005-12, Class M2, 0.83% (US0001M + 49 bps), 2/25/36, Callable 6/25/21 @ 100*		1,336,862‌
	966	Countrywide Home Equity Loan Trust, Series 2004-C, Class C, 0.32% (US0001M + 22 bps), 1/15/34, Callable 6/15/21 @ 100*		962‌
	1,019,745	DB Master Finance LLC, Series 2017-1A, Class A2I, 3.63%, 11/20/47, Callable 11/20/21 @ 100*(b)		1,034,837‌
	1,368,313	Driven Brands Funding LLC, Series 2019-2A, Class A2, 3.98%, 10/20/49, Callable 10/20/24 @ 100*(b)		1,452,546‌
	457,984	Fremont Home Loan Trust, Series 2004-3, Class 10A1, 1.98% (US0001M + 188 bps), 11/25/34, Callable 6/25/21 @ 100*		409,653‌
	1,911,041	Goodgreen 2020-1 Trust, Series 2021-1A, Class A, 2.63%, 4/15/55, Callable 10/15/32 @ 100*(b)		1,971,855‌
	557,350	Home Equity Asset Trust, Series 2005-7, Class M1, 0.77% (US0001M + 45 bps), 1/25/36, Callable 6/25/21 @ 100*		556,868‌
	1,798,068	Home Equity Mortgage Loan Asset-Backed Trust, Series 2004-C, Class 2A3, 0.95% (US0001M + 86 bps), 3/25/35, Callable 6/25/21 @ 100*		1,795,778‌
	83	IMC Home Equity Loan Trust, Series 1998-1, Class A6, 7.02%, 6/20/29(c)(d)		84‌
	242,503	New Century Home Equity Loan Trust, Series 2005-A, Class A4W, 4.70%, 8/25/35, Callable 9/25/21 @ 100*(c)(d)		244,637‌
	1,734,291	NovaStar Mortgage Funding Trust, Series 2003-2, Class M2, 2.87% (US0001M + 278 bps), 9/25/33, Callable 6/25/21 @ 100*		1,775,551‌
	114,649	Residential Asset Mortgage Products, Inc., Series 2002-RS2, Class AI5, 6.03%, 3/25/32, Callable 6/25/21 @ 100*		118,439‌

Shares or Principal Amount		Security Description		Value
Asset Backed Securities, continued
$	3,272	Saxon Asset Securities Trust, Series 2003-3, Class AF6, 4.48%, 12/25/33, Callable 6/25/21 @ 100*(c)(d)	$	3,329‌
	74,247	Soundview Home Equity Loan Trust, Series 2005-B, Class M2, 6.23%, 5/25/35, Callable 6/25/21 @ 100*(c)(d)		72,651
	1,261,002	Structured Asset Investment Loan Trust, Series 2003-BC2, Class A1, 0.79% (US0001M + 68 bps), 4/25/33, Callable 6/25/21 @ 100*		1,257,858
	408,684	Structured Asset Securities Corp Mortgage Pass-Through Certificates, Series 2004-6XS, Class A5A, 6.03%, 3/25/34, Callable 6/25/21 @ 100*(c)(d)		413,251
	826,717	Sun Trust Student Loan Trust, Series 2006-1A, Class B, 0.45% (US0003M + 27 bps), 10/28/37, Callable 4/28/26 @ 100*(a)		759,541
	655,000	ZAXBY'S Funding LLC, Series 2021-1A, Class A2, 3.24%, 7/30/51, Callable 7/30/25 @ 100*(b)		655,000
Total Asset Backed Securities (Cost $20,646,760)				20,682,523
Mortgage Backed Securities† (41.9%)
Alt-A - Adjustable Rate Mortgage Backed Securities (1.0%)
	94,787	Bear Stearns Alternative Trust, Series 2006-1, Class 21A2, 2.96%, 2/25/36, Callable 6/25/21 @ 100*(c)		79,813
	10,036	Bear Stearns Alternative Trust, Series 2005-5, Class 26A1, 3.91%, 7/25/35, Callable 6/25/21 @ 100*(c)		8,131
	14,556	Countrywide Alternative Loan Trust, Series 2005-24, Class 1A1, 1.44% (12MTA + 131 bps), 7/20/35, Callable 6/19/21 @ 100*		12,643
	1,314	Deutsche Mortgage Securities, Inc., Series 2006-ABR, Class A1B1, 0.19% (US0001M + 10 bps), 10/25/36, Callable 6/25/21 @ 100*		1,022
	4,280	Deutsche Mortgage Securities, Inc., Series 2003-4XS, Class A6A, 5.32% (US0003M + 119 bps), 10/25/33, Callable 6/25/21 @ 100*(d)		4,293
	4,468	Deutsche Mortgage Securities, Inc., Series 2006-AB4, Class A1A, 6.00%, 10/25/36, Callable 6/25/21 @ 100*(c)		4,408
	4,921	First Horizon Alternative Mortgage Securities, Series 2004-AA3, Class A1, 2.33%, 9/25/34, Callable 6/25/21 @ 100*(c)		4,887
	20,749	Master Adjustable Rate Mortgage Trust, Series 2004-13, Class 2A1, 2.70%, 4/21/34, Callable 6/21/21 @ 100*(c)		20,797
	592,136	Nomura Asset Acceptance Corp., Series 2005-AR4, Class 3A1, 3.13%, 8/25/35, Callable 6/25/21 @ 100*(c)		626,189
	32,444	Residential Accredit Loans, Inc., Series 2004-QA4, Class NB21, 3.22%, 9/25/34, Callable 6/25/21 @ 100*(c)		33,499
	17,987	Residential Accredit Loans, Inc., Series 2006-QA1, Class A21, 4.30%, 1/25/36, Callable 6/25/21 @ 100*(c)		16,343
				812,025
Alt-A - Fixed Rate Mortgage Backed Securities (0.8%)
	14,624	Chaseflex Trust, Series 2005-1, Class 2A4, 5.50%, 2/25/35, Callable 6/25/21 @ 100*		12,813

See notes to the schedule of portfolio investments.

- 1 -

Schedule of Portfolio Investments	Limited Duration Fund
May 31, 2021 (Unaudited)	Continued

Shares or Principal Amount		Security Description		Value
Mortgage Backed Securities†, continued
Alt-A - Fixed Rate Mortgage Backed Securities, continued:
$	19,414	Citigroup Mortgage Alternative Loan Trust, Series 2006-A3, Class 1A5, 6.00%, 7/25/36, Callable 6/25/21 @ 100*	$	19,320
	376	Countrywide Alternative Loan Trust, Series 2004-12CB, Class 1A1, 5.00%, 7/25/19, Callable 6/25/21 @ 100*		377
	13,719	Countrywide Alternative Loan Trust, Series 2005-J13, Class 2A3, 5.50%, 11/25/35, Callable 6/25/21 @ 100*		12,132
	18,558	Countrywide Alternative Loan Trust, Series 2006-2CB, Class A3, 5.50%, 3/25/36, Callable 6/25/21 @ 100*		11,872
	19,182	Countrywide Alternative Loan Trust, Series 2006-31CB, Class A16, 6.00%, 11/25/36, Callable 10/25/21 @ 100		15,337
	18,686	Countrywide Alternative Loan Trust, Series 2006-43CB, Class 1A4, 6.00%, 2/25/37, Callable 7/25/21 @ 100*		14,445
	134,226	Countrywide Alternative Loan Trust, Series 2006-J8, Class A2, 6.00%, 2/25/37, Callable 2/25/23 @ 100*		86,372
	66,440	Countrywide Alternative Loan Trust, Series 2004-J8, Class 2A1, 7.00%, 8/25/34, Callable 6/25/21 @ 100*		64,252
	42,693	First Horizon Alternative Mortgage Securities, Series 2006-FA3, Class A6, 6.00%, 7/25/36, Callable 6/25/21 @ 100*		29,026
	138	Master Alternative Loans Trust, Series 2004-3, Class 1A1, 5.00%, 3/25/19, Callable 6/25/21 @ 100*		145
	736	Master Alternative Loans Trust, Series 2005-1, Class 5A1, 5.50%, 1/25/20, Callable 7/25/25 @ 100*		713
	3,757	Master Alternative Loans Trust, Series 2004-3, Class 3A1, 6.00%, 4/25/34, Callable 6/25/21 @ 100*		3,805
	300,805	Master Alternative Loans Trust, Series 2004-3, Class 5A1, 6.50%, 3/25/34, Callable 6/25/21 @ 100*		304,219
	21,565	Master Alternative Loans Trust, Series 2004-1, Class 3A1, 7.00%, 1/25/34, Callable 6/25/21 @ 100*		23,237
	3,303	Master Alternative Loans Trust, Series 2004-3, Class 8A1, 7.00%, 4/25/34, Callable 6/25/21 @ 100*		3,370
	1,522	Residential Accredit Loans, Inc., Series 2003- QS14, Class A1, 5.00%, 7/25/18, Callable 6/25/21 @ 100*		1,370
	101	Residential Accredit Loans, Inc., Series 2004-QS13, Class CB, 5.00%, 9/25/19, Callable 6/25/21 @ 100*		102
	5,582	Residential Accredit Loans, Inc., Series 2004-QS6, Class A1, 5.00%, 5/25/19, Callable 6/25/21 @ 100*		5,256
	28,807	Residential Accredit Loans, Inc., Series 2006-QS6, Class 1A2, 6.00%, 6/25/36, Callable 6/25/21 @ 100*		27,617
	42,743	Residential Asset Securitization Trust, Series 2006-A9CB, Class A5, 6.00%, 9/25/36, Callable 10/25/22 @ 100*		22,211

Shares or Principal Amount		Security Description		Value
Mortgage Backed Securities†, continued
Alt-A - Fixed Rate Mortgage Backed Securities, continued:
$	28,550	Residential Asset Securitization Trust, Series 2007-A5, Class 2A3, 6.00%, 5/25/37, Callable 9/25/21 @ 100*	$	23,524
	12,950	Wells Fargo Mortgage Backed Securities Trust, Series 2005-1, Class 2A3, 5.50%, 2/25/35, Callable 6/25/21 @ 100*		12,559
				694,074
Prime Adjustable Rate Mortgage Backed Securities (4.4%)
	7,802	Adjustable Rate Mortgage Trust, Series 2004-4, Class 1A1, 2.38%, 3/25/35, Callable 6/25/21 @ 100*(c)		7,820
	3,184	Adjustable Rate Mortgage Trust, Series 2005-1, Class 2A22, 2.80%, 5/25/35(c)		3,214
	336,618	American Home Mortgage Investment Trust, Series 2006-2, Class 3A2, 6.70%, 6/25/36, Callable 6/25/21 @ 100*(c)(d)		88,157
	582,894	Banc of America Funding Trust, Series 2015-R4, Class 8A1, 0.28% (US0001M + 17 bps), 1/27/35, Callable 11/25/60 @ 100*(b)		581,929
	4,394	Bank of America Mortgage Securities, Series 2004-E, Class 1A1, 2.43%, 6/25/34, Callable 6/25/21 @ 100*(c)		4,436
	6,234	Bank of America Mortgage Securities, Series 2003-H, Class 2A3, 2.78%, 9/25/33, Callable 6/25/21 @ 100*(c)		6,255
	8,255	Bank of America Mortgage Securities, Series 2006-A, Class 2A1, 2.79%, 2/25/36, Callable 6/25/21 @ 100*(c)		8,191
	4,113	Bank of America Mortgage Securities, Series 2006-B, Class 2A1, 3.15%, 11/20/46, Callable 6/20/21 @ 100*(c)		3,947
	5,325	Bear Stearns Adjustable Rate Mortgage Trust, Series 2005-9, Class A1, 2.41% (H15T1Y + 230 bps), 10/25/35, Callable 6/25/21 @ 100*		5,427
	5,339	Bear Stearns Adjustable Rate Mortgage Trust, Series 2004-6, Class 1A1, 2.60%, 9/25/34, Callable 6/25/21 @ 100*(c)		5,150
	4,368	Bear Stearns Adjustable Rate Mortgage Trust, Series 2004-10, Class 15A1, 2.64%, 1/25/35, Callable 6/25/21 @ 100*(c)		4,295
	14,644	Bear Stearns Adjustable Rate Mortgage Trust, Series 2006-4, Class 1A1, 3.05%, 10/25/36, Callable 6/25/21 @ 100*(c)		14,384
	13,509	Bear Stearns Mortgage Securities, Inc., Series 1997-6, Class 1A, 6.30%, 3/25/31, Callable 6/25/21 @ 100*(c)		13,515
	12,313	Chase Mortgage Finance Corp., Series 2007-A2, Class 10A1, 3.34%, 7/25/37, Callable 6/25/21 @ 100*(c)		11,489
	7,933	Citigroup Mortgage Loan Trust, Inc., Series 2005- 3, Class 2A2A, 3.06%, 8/25/35(c)		8,221
	57,029	Coast Savings & Loan Association, Series 1992- 1, Class A, 2.57%, 7/25/22, Callable 6/25/21 @ 100*(c)		57,369
	3,445	Countrywide Home Loans, Series 2003-60, Class 2A1, 2.24%, 2/25/34, Callable 6/25/21 @ 100*(c)		3,323
	9,017	Countrywide Home Loans, Series 2003-58, Class 2A2, 2.83%, 2/19/34, Callable 6/19/21 @ 100*(c)		9,317

See notes to the schedule of portfolio investments.

- 2 -

Schedule of Portfolio Investments	Limited Duration Fund
May 31, 2021 (Unaudited)	Continued

Shares or Principal Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Adjustable Rate Mortgage Backed Securities, continued:
$	5,814	Countrywide Home Loans, Series 2004-12, Class 10A1, 3.04%, 8/25/34, Callable 6/25/21 @ 100*(c)	$	5,700
	256	Countrywide Home Loans, Series 2003-42, Class 1A1, 3.99%, 9/25/33, Callable 6/25/21 @ 100*(c)		260
	31,501	Credit Suisse First Boston Mortgage Securities Corp., Series 2002-AR28, Class CB3, 2.58%, 11/25/32, Callable 6/25/21 @ 100*(c)		16,526
	27,499	Credit Suisse First Boston Mortgage Securities Corp., Series 2004-AR7, Class 2A1, 3.04%, 11/25/34, Callable 6/25/21 @ 100*(c)		29,313
	8,244	First Horizon Mortgage Pass-Through Trust, Series 2005-AR4, Class 2A1, 2.94%, 10/25/35, Callable 6/25/21 @ 100*(c)		8,295
	43,593	GMAC Mortgage Corp. Loan Trust, Series 2005-AR6, Class 3A1, 3.00%, 11/19/35, Callable 6/19/21 @ 100*(c)		43,223
	11,389	GSR Mortgage Loan Trust, Series 2005-AR7, Class 2A1, 2.82%, 11/25/35, Callable 6/25/21 @ 100*(c)		11,492
	28,284	GSR Mortgage Loan Trust, Series 2005-AR2, Class 1A2, 3.03%, 4/25/35, Callable 6/25/21 @ 100*(c)		28,459
	7,438	Harborview Mortgage Loan Trust, Series 2005-14, Class 3A1A, 2.66%, 12/19/35, Callable 6/19/21 @ 100*(c)		7,201
	67,874	Harborview Mortgage Loan Trust, Series 2004-10, Class 3A1B, 3.03%, 1/19/35, Callable 6/19/21 @ 100*(c)		72,592
	12,569	Indymac Index Mortgage Loan Trust, Series 2004-AR4, Class 1A, 2.85%, 8/25/34, Callable 6/25/21 @ 100*(c)		12,510
	25,188	Indymac Index Mortgage Loan Trust, Series 2004-AR4, Class 3A, 3.03%, 8/25/34, Callable 6/25/21 @ 100*(c)		25,602
	24,955	Indymac Index Mortgage Loan Trust, Series 2006-AR13, Class A1, 3.08%, 7/25/36, Callable 10/25/21 @ 100*(c)		20,896
	37,428	Indymac Index Mortgage Loan Trust, Series 2006-AR19, Class 1A2, 3.19%, 8/25/36, Callable 6/25/21 @ 100*(c)		28,351
	669	JPMorgan Mortgage Trust, Series 2005-A4, Class 3A1, 2.74%, 7/25/35, Callable 6/25/21 @ 100*(c)		669
	1,979	JPMorgan Mortgage Trust, Series 2006-A5, Class 3A4, 2.92%, 8/25/36, Callable 6/25/21 @ 100*(c)		1,787
	796,909	LSTAR Securities Investment, Ltd., Series 2021-1, Class A, 1.91% (US0001M + 180 bps), 2/1/26, Callable 2/1/23 @ 100*(b)		796,736
	600,000	Mello Warehouse Securitization Trust, Series 2021-2, Class C, 1.19% (US0001M + 110 bps), 4/25/55, Callable 4/25/24 @ 100*(b)		600,867
	1,000,000	Mello Warehouse Securitization Trust, Series 2020-2, Class E, 2.34% (US0001M + 225 bps), 11/25/53, Callable 12/25/23 @ 100*(b)		1,002,482
	9,486	Merrill Lynch Mortgage Investors Trust, Series 2004-1, Class 2A2, 2.12%, 12/25/34, Callable 6/25/21 @ 100*(c)		9,703

Shares or Principal Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Adjustable Rate Mortgage Backed Securities, continued:
$	918‌	Merrill Lynch Mortgage Investors Trust, Series 2004-A1, Class 2A2, 2.31%, 2/25/34, Callable 11/25/21 @ 100*(c)	$	943‌
	9,015	Merrill Lynch Mortgage Investors Trust, Series 2004-A2, Class 1A, 2.93%, 7/25/34, Callable 2/25/26 @ 100*(c)		9,219
	7,960	Morgan Stanley Mortgage Loan Trust, Series 2004-6AR, Class 3A, 2.75%, 8/25/34, Callable 3/25/30 @ 100*(c)		8,226
	12,284	Morgan Stanley Mortgage Loan Trust, Series 2004-6AR, Class 2A2, 2.96%, 8/25/34, Callable 10/25/24 @ 100*(c)		12,631
	2,846	Structured Adjustable Rate Mortgage Loan Trust, Series 2004-1, Class 3A1, 2.45%, 2/25/34, Callable 6/25/21 @ 100*(c)		2,818
	23,489	Structured Adjustable Rate Mortgage Loan Trust, Series 2004-18, Class 1A2, 2.71%, 12/25/34, Callable 6/25/21 @ 100*(c)		23,028
	7,959	Structured Asset Mortgage Investments, Inc., Series 2005-AR7, Class 1A1, 2.60%, 12/27/35, Callable 6/25/21 @ 100*(c)		8,287
	13,448	Structured Asset Securities Corp., Series 2003-24A, Class 1A3, 2.34%, 7/25/33, Callable 6/25/21 @ 100*(c)		13,933
	6,252	Washington Mutual Mortgage Pass-Through Certificates, Series 2004-AR10, Class A1B, 0.93% (US0001M + 42 bps), 7/25/44, Callable 6/25/21 @ 100*		6,337
	4,350	Washington Mutual Mortgage Pass-Through Certificates, Series 2004-AR3, Class A2, 2.60%, 6/25/34, Callable 6/25/21 @ 100*(c)		4,470
	53,129	Washington Mutual Mortgage Pass-Through Certificates, Series 2006-AR14, Class 1A1, 2.62%, 11/25/36, Callable 6/25/21 @ 100*(c)		52,799
	8,945	Washington Mutual Mortgage Pass-Through Certificates, Series 2006-AR10, Class 1A2, 3.02%, 9/25/36, Callable 6/25/21 @ 100*(c)		8,831
	1,500	Washington Mutual Mortgage Pass-Through Certificates, Series 2006-AR8, Class 1A1, 3.08%, 8/25/46, Callable 6/25/21 @ 100*(c)		1,491
				3,712,116‌
Prime Fixed Mortgage Backed Securities (15.8%)
	2,155,843	Angel Oak Mortgage Trust, Series 2019-6, Class A1, 2.62%, 11/25/59, Callable 12/25/21 @ 100*(b)(c)		2,172,518
	2,470,460	Brean Asset Backed Securities Trust, Series RM1, Class A, 1.40%, 10/25/63, Callable 9/25/27 @ 100*(b)(c)		2,365,407
	362,307	Citigroup Mortgage Loan Trust, Inc., Series 2014-C, Class A, 3.25%, 2/25/54, Callable 11/25/34 @ 100*(b)(c)		363,275
	15,859	Citigroup Mortgage Loan Trust, Inc., Series 2003-1, Class WA2, 6.50%, 6/25/31, Callable 6/25/21 @ 100*		16,278
	84,472	Citigroup Mortgage Loan Trust, Inc., Series 2004-NCM2, Class 1CB2, 6.75%, 8/25/34, Callable 6/25/21 @ 100*		89,938
	15,357	Citigroup Mortgage Loan Trust, Inc., Series 2004-NCM2, Class 2CB3, 8.00%, 8/25/34, Callable 6/25/21 @ 100*		15,906

See notes to the schedule of portfolio investments.

- 3 -

Schedule of Portfolio Investments	Limited Duration Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Fixed Mortgage Backed Securities, continued:
$	3,619	Credit Suisse First Boston Mortgage Securities Corp., Series 2004-7, Class 5A1, 5.00%, 10/25/19, Callable 6/25/21 @ 100*	$	3,603
	78,573	Credit Suisse First Boston Mortgage Securities Corp., Series 2003-23, Class 1A11, 6.00%, 10/25/33		81,505
	25,191	Credit Suisse First Boston Mortgage Securities Corp., Series 2003-8, Class 5A1, 6.50%, 4/25/33, Callable 6/25/21 @ 100*		26,179
	20,175	Credit Suisse First Boston Mortgage Securities Corp., Series 2003-1, Class 1A1, 7.00%, 2/25/33, Callable 6/25/21 @ 100*		20,778
	43,538	Credit Suisse First Boston Mortgage Securities Corp., Series 2002-10, Class 2B1, 7.50%, 5/25/32, Callable 6/25/21 @ 100*		18,846
	225,995	Credit Suisse First Boston Mortgage Securities Corp., Series 2002-34, Class 1A1, 7.50%, 12/25/32, Callable 6/25/21 @ 100*		237,211
	16,096	Galton Funding Mortgage Trust, Series 2018-1, Class A43, 3.50%, 11/25/57, Callable 11/25/22 @ 100*(b)(c)		16,153
	25,707	GSR Mortgage Loan Trust, Series 2003-3F, Class 2A1, 4.50%, 4/25/33, Callable 6/25/21 @ 100*		25,591
	21,954	GSR Mortgage Loan Trust, Series 2005-8F, Class 3A4, 6.00%, 11/25/35, Callable 9/25/23 @ 100*		13,268
	1,270,830	JPMorgan Mortgage Trust, Series 2020-4, Class A3A, 2.50%, 11/25/50, Callable 3/25/23 @ 100*(b)(c)		1,290,055
	789,962	JPMorgan Mortgage Trust, Series 2017-2, Class A4, 3.00%, 5/25/47, Callable 10/25/22 @ 100*(b)(c)		803,796
	11,339	Lehman Mortgage Trust, Series 2005-3, Class 1A3, 5.50%, 1/25/36, Callable 6/25/21 @ 100*		8,578
	520,447	MFRA Trust, Series 2017-RPL1, Class A1, 2.59%, 2/25/57, Callable 11/25/27 @ 100*(b)(c)		525,676
	1,550,000	NewRez Warehouse Securitization Trust, Series 2021-1, Class D, 1.49% (US0001M + 140 bps), 5/25/55, Callable 5/25/24 @ 100*(b)		1,552,758
	7,360	Residential Funding Mortgage Securities I, Series 2005-S7, Class A1, 5.50%, 11/25/35, Callable 6/25/21 @ 100*		7,055
	13,659	Residential Funding Mortgage Securities I, Series 2003-S9, Class A1, 6.50%, 3/25/32, Callable 6/25/21 @ 100*		14,169
	26,063	Sequoia Mortgage Trust, Series 2018-CH1, Class A10, 4.00%, 2/25/48, Callable 9/25/22 @ 100*(b)(c)		26,073
	19,128	Sequoia Mortgage Trust, Series 2018-CH2, Class A12, 4.00%, 6/25/48, Callable 11/25/22 @ 100*(b)(c)		19,127
	1,749,487	Starwood Mortgage Residential Trust, Series 2018-IMC2, Class A1, 4.12%, 10/25/48, Callable 12/25/21 @ 100*(b)(c)		1,776,496
	77,808	Structured Asset Mortgage Investments, Inc., Series 1999-2, Class 3A, 6.75%, 5/25/29, Callable 6/25/21 @ 100*		80,825

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Fixed Mortgage Backed Securities, continued:
$	1,728,459	Verus Securitization Trust, Series 2020-1, Class A1, 2.42%, 1/25/60, Callable 9/25/22 @ 100*(b)(c)	$	1,753,906
				13,324,970
Subprime Mortgage Backed Securities (2.6%)
	171,342	Towd Point Mortgage Trust, Series 2016-1, Class A1B, 2.75%, 2/25/55, Callable 2/25/23 @ 100*(b)(c)		171,780
	458,795	Towd Point Mortgage Trust, Series 2017-1, Class A1, 2.75%, 10/25/56, Callable 7/25/26 @ 100*(b)(c)		465,694
	883,049	Towd Point Mortgage Trust, Series 2017-2, Class A1, 2.75%, 4/25/57, Callable 12/25/23 @ 100*(b)(c)		895,894
	685,708	Towd Point Mortgage Trust, Series 2017-6, Class A1, 2.75%, 10/25/57, Callable 7/25/24 @ 100*(b)(c)		705,164
				2,238,532
U.S. Government Agency Mortgage Backed Securities (17.3%)
	264,935	Fannie Mae, Series 2013-68, Class 10A1, 1.00%, 3/25/42		262,239
	15,599	Fannie Mae, 1.70% (US0012M + 132 bps), 1/1/35, Pool #805386		16,144
	119,166	Fannie Mae, Series 2012-31, Class PA, 2.00%, 4/25/41		121,656
	248,370	Fannie Mae, Series 2012-51, Class EB, 2.00%, 1/25/40		251,571
	223,191	Fannie Mae, Series 2012-96, Class PD, 2.00%, 7/25/41		226,457
	224,460	Fannie Mae, Series 2013-18, Class 10A1, 2.00%, 12/25/42		230,644
	1,778	Fannie Mae, 2.07% (H15T1Y + 187 bps), 12/1/22, Pool #303247		1,783
	139,363	Fannie Mae, Series 2013-73, Class 10A1, 2.25%, 6/25/42		144,046
	156,539	Fannie Mae, Series 2013-74, Class 10A1, 2.25%, 6/25/42(c)		162,057
	1,702	Fannie Mae, 2.39% (H15T1Y + 216 bps), 6/1/32, Pool #725286		1,705
	26,866	Fannie Mae, 2.67% (H15T1Y + 229 bps), 2/1/30, Pool #556998		26,801
	97,710	Fannie Mae, Series 2011-118, Class 10A1, 3.00%,11/25/41		104,711
	291,232	Fannie Mae, Series 2014-1, Class AB, 3.00%, 6/25/43		304,936
	1,005,713	Fannie Mae, Series 2018-83, Class LC, 3.00%, 11/25/48		1,049,396
	757,568	Fannie Mae, Series 2003-W14, Class 2A, 3.88%, 1/25/43, Callable 6/25/21 @ 100*(c)		793,674
	1,854,122	Fannie Mae, Series 2003-W12, Class 3A, 3.94%, 3/25/43, Callable 6/25/21 @ 100*(c)		1,991,313
	556,422	Fannie Mae, Series 2003-W16, Class AF5, 4.40%, 11/25/33, Callable 6/25/21 @ 100*(c)(d)		619,460
	7,313	Fannie Mae, Series 2001-W4, Class AF6, 5.11%, 1/25/32, Callable 6/25/21 @ 100*(c)(d)		7,849
	2,552,308	Fannie Mae, Series 2004-W3, Class A7, 5.50%, 5/25/34, Callable 6/25/21 @ 100*		2,893,742
	243	Fannie Mae, Series 1992-129, Class L, 6.00%, 7/25/22		246

See notes to the schedule of portfolio investments.

- 4 -

Schedule of Portfolio Investments	Limited Duration Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
U.S. Government Agency Mortgage Backed Securities, continued:
$	8,251	Fannie Mae, Series 2001-W2, Class AF6, 6.09%, 10/25/31, Callable 6/25/21 @ 100*(c)(d)	$	8,823
	8,350	Fannie Mae, Series 2001-W1, Class AF6, 6.40%, 7/25/31, Callable 6/25/21 @ 100*(c)(d)		10,344
	1	Fannie Mae, Series 1991-108, Class J, 7.00%, 9/25/21		1
	84	Fannie Mae, Series 1992-195, Class C, 7.50%, 10/25/22		86
	1,000	Fannie Mae, Series 1996-42, Class LL, 7.50%, 9/25/26		1,090
	782,524	Fannie Mae Grantor Trust, Series 2003-T4, Class 2A5, 4.66%, 9/26/33, Callable 6/26/21 @ 100*(c)(d)		869,913
	81,359	Freddie Mac, Series 4146, Class 10A1, 1.50%, 10/15/42		83,088
	692,560	Freddie Mac, Series 4220, Class KC, 1.50%, 5/15/32		709,525
	3,523	Freddie Mac, 1.77% (US0006M + 154 bps), 4/1/36, Pool #1N0148		3,661
	222,030	Freddie Mac, Series 4039, Class ME, 2.00%, 12/15/40(c)		224,740
	158,626	Freddie Mac, Series 3982, Class MD, 2.00%, 5/15/39		162,827
	211,692	Freddie Mac, Series 4019, Class GB, 2.00%, 12/15/41		218,964
	187,449	Freddie Mac, Series 4030, Class DA, 2.00%, 2/15/41		190,628
	560,722	Freddie Mac, Series 4272, Class YG, 2.00%, 11/15/26		572,045
	185,897	Freddie Mac, Series 4408, Class GA, 2.00%, 9/15/41		191,058
	25,355	Freddie Mac, Series 3890, Class BA, 2.50%, 11/15/40		25,725
	243,446	Freddie Mac, Series 3913, Class PC, 2.50%, 3/15/41		249,816
	322,891	Freddie Mac, Series 4312, Class 10A1, 2.50%, 12/15/41		333,551
	8,781	Freddie Mac, Series 4017, Class MA, 3.00%, 3/15/41		8,819
	536,365	Freddie Mac, Series 4374, Class GA, 3.00%, 9/15/36		571,742
	377,415	Freddie Mac, Series T-67, Class 1A1C, 3.16%, 3/25/36, Callable 6/25/21 @ 100*(c)		406,072
	7,645	Freddie Mac, 4.00%, 9/1/33, Pool #N31025		8,190
	1,659	Freddie Mac, Series 3688, Class HQ, 6.00%, 11/15/21		1,669
	328	Freddie Mac, Series 1474, Class E, 7.00%, 2/15/23, Callable 7/15/21 @ 100*		341
	325	Freddie Mac, Series 1310, Class J, 8.00%, 6/15/22, Callable 7/15/21 @ 100*		334
	261	Freddie Mac, Series 1312, Class I, 8.00%, 7/15/22, Callable 7/15/21 @ 100*		269
	786	Government National Mortgage Assoc., 2.00% (H15T1Y + 150 bps), 1/20/23, Pool #8123		794
	1,785	Government National Mortgage Assoc., 2.00% (H15T1Y + 150 bps), 1/20/25, Pool #8580		1,829
	968	Government National Mortgage Assoc., 2.00% (H15T1Y + 150 bps), 3/20/26, Pool #8832		980
	1,383	Government National Mortgage Assoc., 2.00% (H15T1Y + 150 bps), 3/20/29, Pool #80263		1,405
	344,080	Government National Mortgage Assoc., Series 2013-69, 2.00%, 9/20/42		357,090
	1,810	Government National Mortgage Assoc., 2.13% (H15T1Y + 150 bps), 12/20/27, Pool #80141		1,881

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
U.S. Government Agency Mortgage Backed Securities, continued:
$	4,700	Government National Mortgage Assoc., 2.13% (H15T1Y + 150 bps), 11/20/29, Pool #876947	$	4,746
	223	Government National Mortgage Assoc., 2.50% (H15T1Y + 150 bps), 12/20/21, Pool #8889		223
	2,881	Government National Mortgage Assoc., 2.50% (H15T1Y + 150 bps), 1/20/25, Pool #8585		2,961
	9,195	Government National Mortgage Assoc., 2.87% (H15T1Y + 150 bps), 5/20/34, Pool #80916		9,469
	84	Government National Mortgage Assoc., 6.50%, 12/15/25, Pool #414856		94
	52	Government National Mortgage Assoc., 7.00%, 4/20/24, Pool #1655		54
	27	Government National Mortgage Assoc., 7.00%, 11/20/26, Pool #2320		27
	30,491	Government National Mortgage Assoc., Series 2013-176, Class BE, 7.16%, 3/16/46, Callable 6/16/21 @ 100*(c)		46,060
	177	Government National Mortgage Assoc., 7.50%, 3/15/24, Pool #376439		180
				14,491,544
Total Mortgage Backed Securities (Cost $34,967,016)				35,273,261
Corporate Bonds (15.7%)
Aerospace & Defense (1.3%)
	920,000	Boeing Co. (The), 7.95%, 8/15/24		1,116,634
Banks (4.9%)
	1,450,000	Bank of America Corp., 3.55% (US0003M + 78 bps), 3/5/24, Callable 3/5/23 @ 100*		1,529,493
	1,500,000	Mizuho Financial Group, Inc., 2.95%, 2/28/22		1,531,156
	1,000,000	Mizuho Financial Group, Inc., 3.55%, 3/5/23		1,056,589
Capital Markets (0.0%^)				4,117,238
	2,000,000	Lehman Brothers Holdings, Inc., 6.00%, 7/19/12, MTN (e)		14,000
Oil, Gas & Consumable Fuels (6.6%)
	2,515,000	HollyFrontier Corp., 2.63%, 10/1/23		2,599,813
	900,000	ONEOK, Inc., 2.20%, 9/15/25, Callable 8/15/25 @ 100*		925,371
	1,915,000	ONEOK, Inc., 2.75%, 9/1/24, Callable 8/1/24 @ 100*		2,021,854
				5,547,038
Tobacco (2.9%)
	2,150,000	Altria Group, Inc., 4.40%, 2/14/26, Callable 12/14/25 @ 100*		2,436,808
Total Corporate Bonds (Cost $13,734,123)				13,231,718
Taxable Municipal Bonds (1.3%)
Georgia (1.3%)
	1,000,000	State of Georgia, Build America Bonds, GO, Series H,4.50%,11/1/25		1,098,559
Total Taxable Municipal Bonds (Cost $1,054,675)				1,098,559
U.S. Government Agency Securities (3.6%)
Federal Farm Credit Banks
	1,000,000	1.23%, 9/10/29, Callable 9/10/21 @ 100*		966,950
Federal Home Loan Banks
	1,250,000	0.75%, 4/30/27, Callable 7/30/21 @ 100*(c)		1,250,069
	850,500	1.11%, 5/28/26, Callable 6/28/21 @ 100*		850,520
				2,100,589
Total U.S. Government Agency Securities (Cost $3,100,500)				3,067,539

See notes to the schedule of portfolio investments.

- 5 -

Schedule of Portfolio Investments	Limited Duration Fund
May 31, 2021 (Unaudited)	Concluded

Shares or Principal Amount		Security Description	Value
U.S. Treasury Obligations (9.8%)
U.S. Treasury Notes
$	4,169,000‌	0.50%,2/28/26	$	4,121,122‌
	4,000,000‌	1.50%,10/31/24		4,147,187‌
Total U.S. Treasury Obligations (Cost $8,070,367)				8,268,309‌
Investment in Affiliates (3.8%)
	3,204,243	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.01%(f)		3,204,243‌
Total Investment in Affiliates (Cost $3,204,243)				3,204,243‌
Total Investments (Cost $84,777,684) - 100.6%				84,826,152‌
Liabilities in excess of other assets — (0.6)%				(542,572‌)
Net Assets - 100.0%			$	84,283,580‌

(a)	Represents a restricted security, purchased under Rule 144A, Section 4(2), which is exempt from registration under the Securities Act of 1933, as amended. The security has been deemed illiquid according to the policies and procedures adopted by the Board of Trustees. At May 31, 2021, illiquid securities were 1.3% of the Fund's net assets.
(b)	Represents a restricted security, purchased under Rule 144A, Section 4(2), which is exempt from registration under the Securities Act of 1933, as amended. The security has been deemed liquid according to the policies and procedures adopted by the Board of Trustees.
(c)	The rate for certain asset-backed and mortgage-backed securities may vary based on factors relating to the pool of assets underlying the security. The rate presented is the rate in effect at May 31, 2021.
(d)	Step Bond: Coupon rate is set for an initial period and then increased to a higher coupon rate at a specified date. The rate shown is the rate in effect at May 31, 2021.
(e)	Issuer has defaulted on the payment of interest.
(f)	Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.
*	Represents next call date. Additional subsequent call dates and amounts may apply to this security.
^	Represents less than 0.05%.
†	Mortgage backed securities are classified based on the characteristics of their underlying collateral, the fixed vs. variable nature of the obligations, and the credit standing of the mortgagors. The fixed or variable rate nature of securities interest payments to which the fund is entitled may not coincide with the payment nature of the collateral underlying the securities.

12MTA	12 Month Treasury Average
GO	General Obligation
H15T1Y	1 Year Treasury Constant Maturity Rate
LIBOR	London Interbank Offered Rate
MTN	Medium Term Note
US0001M	1 Month US Dollar LIBOR
US0003M	3 Month US Dollar LIBOR
US0006M	6 Month US Dollar LIBOR
US0012M	12 Month US Dollar LIBOR

See notes to the schedule of portfolio investments.

- 6 -

Schedule of Portfolio Investments	Moderate Duration Fund
May 31, 2021 (Unaudited)

Shares or Principal Amount		Security Description	Value
Asset Backed Securities (11.9%)
$	378,755‌	AmeriCredit Automobile Receivables Trust, Series 2016-4, Class D, 2.74%, 12/8/22, Callable 7/8/21 @ 100*	$	379,005‌
	275,999‌	Bayview Opportunity Master Fund IVb Trust, Series 2017-SPL4, Class A, 3.50%, 1/28/55, Callable 7/28/21 @ 100*(a)(b)		283,289‌
	378,908	CLI Funding VI LLC, Series 2020-3A, Class A, 2.07%, 10/18/45, Callable 11/18/22 @ 100*(b)		383,514‌
	314,438‌	DB Master Finance LLC, Series 2017-1A, Class A2I, 3.63%, 11/20/47, Callable 11/20/21 @ 100*(b)		319,091‌
	275,000	Domino's Pizza Master Issuer LLC, Series 2021-1A, Class A2I, 2.66%, 4/25/51, Callable 10/25/25 @ 100*(b)		279,410‌
	289,156‌	Longtrain Leasing III LLC, Series 2015-1A, Class A2, 4.06%, 1/15/45, Callable 1/15/25 @ 100*(b)		294,036‌
	175,000	Sabey Data Center Issuer LLC, Series 2020-1, Class A2, 3.81%, 3/20/45, Callable 11/20/23 @ 100*(b)		186,554‌
	263,233	Textainer Marine Containers VII, Ltd., Series 2A, Class A, 2.23%, 4/20/46, Callable 4/20/23 @ 100*(b)		266,519‌
	300,000	Vantage Data Centers LLC, Series 2020-1A, Class A2, 1.65%, 9/15/45, Callable 9/15/23 @ 100*(b)		300,317‌
	290,650	VR Funding LLC, Series 2020-1A, Class A, 2.79%, 11/15/50, Callable 11/15/23 @ 100*(b)		286,213‌
	155,000	Willis Engine Structured Trust VI, Series 2021-A, Class A, 3.10%, 5/15/46, Callable 5/15/29 @ 100*(b)		154,992‌
Total Asset Backed Securities (Cost $3,113,543)				3,132,940
Mortgage Backed Securities† (22.2%)
Alt-A - Adjustable Rate Mortgage Backed Securities (0.5%)
	131,618	Bear Stearns Alternative-A Trust, Series 2005-7, Class 11A1, 0.65% (US0001M + 54 bps), 8/25/35, Callable 6/25/21 @ 100*		132,701‌
Alt-A - Fixed Rate Mortgage Backed Securities (2.0%)
	54,162	Chaseflex Trust, Series 2005-2, Class 1A1, 6.00%, 6/25/35, Callable 6/25/21 @ 100*		48,021‌
	3,403	Countrywide Alternative Loan Trust, Series 2005-3CB, Class 1A4, 5.25%, 3/25/35, Callable 6/25/21 @ 100*		3,355‌
	10,378	Countrywide Alternative Loan Trust, Series 2004-5CB, Class 1A1, 6.00%, 5/25/34, Callable 6/25/21 @ 100*		10,697‌
	70,645	Countrywide Alternative Loan Trust, Series 2006-J8, Class A2, 6.00%, 2/25/37, Callable 2/25/23 @ 100*		45,459‌
	52,137‌	Deutsche Alternative-A Securities, Inc. Mortgage Loan Trust, Series 2006-AB2, Class A3, 4.97%, 6/25/36, Callable 6/25/21 @ 100*(a)		51,837‌
	9,817	Master Alternative Loans Trust, Series 2004-1, Class 4A1, 5.50%, 2/25/34, Callable 6/25/21 @ 100*		10,137‌
	3,768	Master Alternative Loans Trust, Series 2004-13, Class 12A1, 5.50%, 12/25/19, Callable 6/25/21 @ 100*		3,485‌

Shares or Principal Amount		Security Description	Value
Mortgage Backed Securities†, continued
Alt-A - Fixed Rate Mortgage Backed Securities, continued:
$	12,029	Master Alternative Loans Trust, Series 2004-4, Class 1A1, 5.50%, 5/25/34, Callable 6/25/21 @ 100*	$	12,387‌
	154	‌Master Alternative Loans Trust, Series 2005-1, Class 5A1, 5.50%, 1/25/20, Callable 7/25/25 @ 100*		150‌
	31,175	‌Master Alternative Loans Trust, Series 2004-6, Class 10A1, 6.00%, 7/25/34, Callable 6/25/21 @ 100*		32,497‌
	19,629‌	Master Alternative Loans Trust, Series 2004-6, Class 7A1, 6.00%, 7/25/34, Callable 6/25/21 @ 100*		20,453‌
	7,408‌	Master Alternative Loans Trust, Series 2003-7, Class 6A1, 6.50%, 12/25/33, Callable 6/25/21 @ 100*		7,790‌
	14,843	‌Master Alternative Loans Trust, Series 2004-4, Class 8A1, 6.50%, 5/25/34, Callable 6/25/21 @ 100*		15,432‌
	27,357	‌Master Alternative Loans Trust, Series 2004-6, Class 6A1, 6.50%, 7/25/34, Callable 6/25/21 @ 100*		28,890‌
	4,911‌	Nomura Asset Acceptance Corp., Series 2005-AP1, Class 2A5, 5.36%, 2/25/35, Callable 6/25/21 @ 100*(a)(c)		5,027‌
	25,731	‌Nomura Asset Acceptance Corp., Series 2005-AP2, Class A5, 5.48%, 5/25/35, Callable 6/25/21 @ 100*(a)(c)		17,110‌
	1,147	‌Nomura Asset Acceptance Corp., Series 2005-WF1, Class 2A5, 5.66%, 3/25/35, Callable 6/25/21 @ 100*(a)(c)		1,166‌
	86,480	‌Nomura Asset Acceptance Corp., Series 2006-AF1, Class 1A2, 6.16%, 5/25/36, Callable 6/25/21 @ 100*(a)		27,527‌
	38,489	‌Ocwen Residential MBS Corp., Series 1998-R1, Class B1, 3.43%, 10/25/40, Callable 6/25/21 @ 100*(a)(b)		29,697‌
	2‌	Residential Accredit Loans, Inc., Series 2003-QS18, Class A1, 5.00%, 9/25/18, Callable 6/25/21 @ 100*		2‌
	2,805	‌Residential Accredit Loans, Inc., Series 2006-QS18, Class 3A3, 5.75%, 12/25/21, Callable 6/25/21 @ 100*		2,714‌
	10,119‌	Residential Accredit Loans, Inc., Series 2006-QS5, Class A9, 6.00%, 5/25/36, Callable 6/25/21 @ 100*		9,667‌
	26,013	‌Residential Accredit Loans, Inc., Series 2006-QS12, Class 1A2, 6.50%, 9/25/36, Callable 6/25/21 @ 100*		17,736‌
	39,442	‌Residential Asset Securitization Trust, Series 2005-A14, Class A5, 5.50%, 12/25/35, Callable 11/25/21 @ 100*		28,240‌
	43,302	‌Residential Asset Securitization Trust, Series 2006-A8, Class 1A1, 6.00%, 8/25/36, Callable 11/25/26 @ 100*		35,165‌
	44,713	‌Washington Mutual Mortgage Pass-Through Certificates, Series 2005-6, Class 1CB, 6.50%, 8/25/35, Callable 6/25/21 @ 100*		44,577‌
				509,218‌

See notes to the schedule of portfolio investments.

- 7 -

Schedule of Portfolio Investments	Moderate Duration Fund
May 31, 2021 (Unaudited)	Continued

Shares or Principal Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Adjustable Rate Mortgage Backed Securities (3.5%)
$	6,462‌	Bank of America Funding Corp., Series 2004-B, Class 5A1, 2.90%, 11/20/34, Callable 6/20/21 @ 100*(a)	$	6,489‌
	1,912	Bear Stearns Mortgage Trust, Series 2003-7, Class 4A, 2.72%, 10/25/33, Callable 6/25/21 @ 100*(a)		2,053‌
	4,607	Bear Stearns Mortgage Trust, Series 2004-9, Class 12A3, 2.85%, 11/25/34, Callable 6/25/21 @ 100*(a)		4,915‌
	10,900	Countrywide Home Loans, Series 2004-2, Class 2A1, 2.65%, 2/25/34, Callable 6/25/21 @ 100*(a)		10,394‌
	3,230‌	Countrywide Home Loans, Series 2004-12, Class 10A1, 3.04%, 8/25/34, Callable 6/25/21 @ 100*(a)		3,166‌
	10,535	HomeBanc Mortgage Trust, Series 2006-1, Class 1A1, 1.87%, 4/25/37, Callable 6/25/21 @ 100*(a)		9,475‌
	23,438‌	JPMorgan Mortgage Trust, Series 2005-A1, Class 3A4, 2.70%, 2/25/35, Callable 6/25/21 @ 100*(a)		23,198‌
	3,862‌	JPMorgan Mortgage Trust, Series 2006-A2, Class 2A1, 2.80% (US0003M + 101 bps), 4/25/36, Callable 7/25/21 @ 100*		3,808‌
	18,364	JPMorgan Mortgage Trust, Series 2006-A6, Class 1A4L, 3.33%, 10/25/36, Callable 6/25/21 @ 100*(a)		16,054‌
	197,485	JPMorgan Mortgage Trust, Series 2005-A6, Class 3A3, 3.39%, 9/25/35, Callable 6/25/21 @ 100*(a)		201,042‌
	281,352	LSTAR Securities Investment, Ltd., Series 2019-4, Class A1, 2.61% (US0001M + 150 bps), 5/1/24(b)		279,896‌
	100,000‌	Mello Warehouse Securitization Trust, Series 2020-2, Class C, 1.39% (US0001M + 130 bps), 11/25/53, Callable 12/25/23 @ 100*(b).		100,251‌
	260,221‌	WinWater Mortgage Loan Trust, Series 2014-1, Class A1, 3.85%, 6/20/44, Callable 1/20/22 @ 100*(a)(b)		263,431‌
				924,172‌
Prime Fixed Mortgage Backed Securities (5.8%)
	3,833	American Home Mortgage Investment Trust, Series 2005-2, Class 5A1, 5.56%, 9/25/35, Callable 6/25/21 @ 100*(a)(c)		3,722‌
	257,574	Angel Oak Mortgage Trust, Series 2019-5, Class A1, 2.59%, 10/25/49, Callable 10/25/21 @ 100*(a)(b)		258,900‌
	13,909	Chase Mortgage Finance Corp., Series 2007-S2, Class 2A1, 5.50%, 3/25/37, Callable 6/25/21 @ 100*		9,137‌
	7,445‌	Citigroup Mortgage Loan Trust, Inc., Series 2005-1, Class 3A1, 6.50%, 4/25/35		7,851‌
	8,018‌	Citigroup Mortgage Loan Trust, Inc., Series 2004-NCM1, Class 1A3, 6.75%, 7/25/34, Callable 6/25/21 @ 100*		8,409‌
	3,469	Countrywide Alternative Loan Trust, Series 2003-J3, Class 2A1, 6.25%, 12/25/33, Callable 6/25/21 @ 100*		3,527‌
	1,851	Countrywide Home Loans, Series 2004-J6, Class 1A2, 5.25%, 8/25/24, Callable 6/25/21 @ 100*		1,857‌

Shares or Principal Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Fixed Mortgage Backed Securities, continued:
$	7,503	‌Countrywide Home Loans, Series 2005-29, Class A1, 5.75%, 12/25/35, Callable 6/25/21 @ 100*	$	5,476‌
	4,023‌	Credit Suisse First Boston Mortgage Securities Corp., Series 2004-1, Class 4A1, 5.00%, 12/31/99, Callable 6/25/21 @ 100*		4,104‌
	17,322‌	Credit Suisse First Boston Mortgage Securities Corp., Series 2003-27, Class 8A1, 6.00%, 11/25/33, Callable 6/25/21 @ 100*		18,020‌
	6,603‌	Credit Suisse First Boston Mortgage Securities Corp., Series 2003-8, Class 5A1, 6.50%, 4/25/33, Callable 6/25/21 @ 100*		6,862‌
	38,225‌	Flagstar Mortgage Trust, Series 2019-2, Class A3, 3.50%, 12/25/49, Callable 9/25/23 @ 100*(a)(b)		38,351‌
	50,274‌	Galton Funding Mortgage Trust, Series 2017-1, Class A21, 3.50%, 7/25/56, Callable 9/25/28 @ 100*(a)(b)		50,991‌
	255,724‌	GS Mortgage-Backed Securities Corp. Trust, Series 2020-PJ3, Class A14, 3.00%, 10/25/50, Callable 10/25/24 @ 100*(a)(b)		261,718‌
	162,256‌	GSR Mortgage Loan Trust, Series 2004-13F, Class 2A1, 4.25%, 11/25/34, Callable 6/25/21 @ 100*		163,881‌
	108‌	GSR Mortgage Loan Trust, Series 2004-10F, Class 2A4, 5.00%, 8/25/19, Callable 6/25/21 @ 100*		108‌
	827	GSR Mortgage Loan Trust, Series 2003-2F, Class 3A1, 6.00%, 3/25/32, Callable 6/25/21 @ 100*		870‌
	19,738	Morgan Stanley Mortgage Loan Trust, Series 2004-3, Class 3A, 6.00%, 4/25/34, Callable 2/25/24 @ 100*		21,009‌
	407,214	New Residential Mortgage Loan Trust, Series 2019-NQM3, Class A1, 2.80%, 7/25/49, Callable 6/25/21 @ 100*(a)(b)		409,633‌
	1,607	Prime Mortgage Trust, Series 2004-CL1, Class 1A1, 6.00%, 2/25/34, Callable 6/25/21 @ 100*		1,631‌
	36,032	Residential Asset Mortgage Products, Inc., Series 2005-SL2, Class A3, 7.00%, 2/25/32, Callable 7/25/31 @ 100*		33,841‌
	144,896‌	Sequoia Mortgage Trust, Series 2013-1, Class 2A1, 1.86%, 2/25/43, Callable 6/25/21 @ 100*(a)(b)		145,281‌
	64,606‌	Sequoia Mortgage Trust, Series 2017-2, Class A4, 3.50%, 2/25/47, Callable 3/25/23 @ 100*(a)(b)		64,743‌
	9,654‌	Structured Asset Mortgage Investments, Inc., Series 1999-2, Class 3A, 6.75%, 5/25/29, Callable 6/25/21 @ 100*		10,029‌
	88‌	Structured Asset Securities Corp., Series 1997-2, Class 2A4, 7.25%, 3/28/30, Callable 6/28/21 @ 100*		91‌
	942‌	Washington Mutual Mortgage Pass-Through Certificates, Series 2003-S11, Class 1A, 5.00%, 11/25/33, Callable 6/25/21 @ 100*		974‌
	589‌	Washington Mutual Mortgage Pass-Through Certificates, Series 2004-RA1, Class 2A, 7.00%, 3/25/34, Callable 5/25/28 @ 100*		628‌
				1,531,644‌

See notes to the schedule of portfolio investments.

- 8 -

Schedule of Portfolio Investments	Moderate Duration Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
Subprime Mortgage Backed Securities (0.9%)
$	70,381‌	Towd Point Mortgage Trust, Series 2018-1, Class A1, 3.00%, 1/25/58, Callable 7/25/25 @ 100*(a)(b)	$	72,839
	157,724‌	Towd Point Mortgage Trust, Series 2018-2, Class A1, 3.25%, 3/25/58, Callable 11/25/25 @ 100*(a)(b)		164,020
				236,859‌
U.S. Government Agency Mortgage Backed Securities (9.5%)
	33,117‌	Fannie Mae, Series 2013-68, Class 10A1, 1.00%, 3/25/42		32,780
	58‌	Fannie Mae, Series 1992-45, Class F, 1.30% (T7Y), 4/25/22		58
	180,886‌	Fannie Mae, Series 2012-30, Class BA, 2.00%, 6/25/41		186,900
	104,779‌	Fannie Mae, Series 2012-8, Class KA, 2.00%, 6/25/41		107,334
	37,410‌	Fannie Mae, Series 2013-18, Class 10A1, 2.00%, 12/25/42		38,441
	1,534‌	Fannie Mae, 2.20% (US0012M + 162 bps), 9/1/33, Pool #739372		1,547
	1,863‌	Fannie Mae, 2.23% (US0012M + 186 bps), 1/1/37, Pool #906675		1,866
	62,616‌	Fannie Mae, Series 2013-74, Class 10A1, 2.25%, 6/25/42(a)		64,823
	90,208‌	Fannie Mae, Series 2010-100, Class LA, 2.50%, 7/25/40		94,145
	96,814‌	Fannie Mae, Series 2014-61, Class P, 2.50%, 7/25/44		101,418
	103,643‌	Fannie Mae, Series 2015-12, Class PC, 2.50%, 7/25/44		105,922
	194,131‌	Fannie Mae, Series 2017-M5, Class A1, 2.74%, 4/25/29		207,714
	90,382‌	Fannie Mae, Series 2011-118, Class 10A1, 3.00%,11/25/41		96,858
	168,431‌	Fannie Mae, Series 2015-59, Class LM, 3.00%, 7/25/45		178,491
	226,637‌	Fannie Mae, Series 2018-M12, Class A1, 3.55%, 2/25/30		253,771
	115‌	Fannie Mae, 6.00%, 4/1/35, Pool #735503		133
	769‌	Fannie Mae, Series 2001-55, Class PC, 6.50%, 10/25/31		898
	10,413‌	Fannie Mae, Series 2003-W2, Class 1A2, 7.00%, 7/25/42, Callable 6/25/21 @ 100*		12,532
	402‌	Fannie Mae, Series 2002-T1, Class A3, 7.50%, 11/25/31, Callable 6/25/21 @ 100*		470
	196‌	Fannie Mae, Series 1992-31, Class M, 7.75%, 3/25/22		200
	8‌	Fannie Mae, Series G-32, Class L, 8.00%, 10/25/21		9
	1‌	Fannie Mae, Series G-32, Class N, 8.10%, 10/25/21		1
	15‌	Freddie Mac, Series 1222, Class P, 1.20% (T10Y - 40 bps), 3/15/22, Callable 7/15/21 @ 100*		14
	20,340‌	Freddie Mac, Series 4146, Class 10A1, 1.50%, 10/15/42		20,772
	96,918	Freddie Mac, Series 4220, Class KC, 1.50%, 5/15/32		99,292
	28,629‌	Freddie Mac, Series 3936, Class LA, 2.00%, 6/15/40		28,849

Shares or
Principal
Amount		Security Description		Value
Mortgage Backed Securities†, continued
U.S. Government Agency Mortgage Backed Securities, continued:
$	93,474‌	Freddie Mac, Series 4076, Class QC, 2.00%, 11/15/41	$	95,549‌
	‌103,181‌	Freddie Mac, Series 4408, Class GA, 2.00%, 9/15/41		106,046‌
	70,593‌ ‌	Freddie Mac, Series 4461, Class EA, 2.00%, 7/15/37		72,492‌
	239,611‌	Freddie Mac, Series 3908, Class B, 2.50%, 6/15/39		252,159‌
	58,658‌ ‌	Freddie Mac, Series 4312, Class 10A1, 2.50%, 12/15/41		60,595‌
	81,894‌ ‌	Freddie Mac, Series 4316, Class JY, 3.00%, 1/15/44		87,236‌
	37,949‌ ‌	Freddie Mac, Series 4332, Class NH, 3.00%, 9/15/43		38,815‌
	10,630‌ ‌	Freddie Mac, 5.37% (H15T1Y + 228 bps), 8/1/34, Pool #755230		10,747‌
	62‌ ‌	Freddie Mac, Series 1136, Class H, 6.00%, 9/15/21, Callable 7/15/21 @ 100*		63‌
	469‌ ‌	Freddie Mac, Series 1379, Class H, 7.00%, 10/15/22, Callable 7/15/21 @ 100*		483‌
	689‌ ‌	Freddie Mac, Series 1714, Class K, 7.00%, 4/15/24, Callable 7/15/21 @ 100*		735‌
	978‌ ‌	Freddie Mac, Series 1904, Class D, 7.50%, 10/15/26, Callable 7/15/21 @ 100*		1,097‌
	10‌ ‌	Freddie Mac, Series 1119, Class H, 7.75%, 8/15/21, Callable 7/15/21 @ 100*		10‌
	407‌ ‌	Freddie Mac, Series 1281, Class I, 8.00%, 5/15/22, Callable 7/15/21 @ 100*		415‌
	769‌ ‌	Freddie Mac, Series 1310, Class J, 8.00%, 6/15/22, Callable 7/15/21 @ 100*		790‌
	3,065‌ ‌	Government National Mortgage Assoc., Series 2013-104, Class DC, 2.00%, 4/20/40		3,087‌
	73,732‌ ‌	Government National Mortgage Assoc., Series 2013-69, 2.00%, 9/20/42		76,519‌
	14,703‌ ‌	Government National Mortgage Assoc., Series 2010-69, Class MC, 2.50%, 4/20/40		14,800‌
	8,775‌ ‌	Government National Mortgage Assoc., Series 2010-98, Class CH, 3.00%, 10/20/39		8,846‌
	‌25,511‌	Government National Mortgage Assoc., Series 2010-98, Class MG, 3.00%, 8/20/39		26,077‌
	‌4,476‌	Government National Mortgage Assoc., 7.00%, 3/15/26, Pool #419128		4,495‌
	‌55‌	Government National Mortgage Assoc., 7.00%, 3/20/27, Pool #2394		61‌
	‌501‌	Government National Mortgage Assoc., 8.00%, 5/15/23, Pool #343406		503‌
	‌281‌	Government National Mortgage Assoc., 8.00%, 10/20/24, Pool #1884		298‌
	‌38‌	Government National Mortgage Assoc., 8.00%, 2/20/26, Pool #2171		42‌
	‌15‌	Government National Mortgage Assoc., 8.00%, 3/20/26, Pool #2187		15‌
	‌1,065‌	Government National Mortgage Assoc., 8.00%, 4/20/26, Pool #2205		1,150‌
	‌3,146‌	Government National Mortgage Assoc., 8.00%, 5/20/26, Pool #2219		3,440‌
	‌			2,501,803
Total Mortgage Backed Securities (Cost $5,778,895)				5,836,397

See notes to the schedule of portfolio investments.

- 9 -

Schedule of Portfolio Investments	Moderate Duration Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description		Value
Corporate Bonds (27.9%)
Aerospace & Defense (1.8%)
$	450,000‌	Boeing Co. (The), 3.25%, 2/1/28, Callable 12/1/27 @ 100*	$	473,835‌
Airlines (1.0%)
	247,429‌	United Airlines Pass Through Trust, Series 2020-1, Class A, 5.88%, 4/15/29		273,489‌
Banks (3.2%)
	510,000‌	Bank of America Corp., 3.55% (US0003M + 78 bps), 3/5/24, Callable 3/5/23 @ 100 *		537,960‌
	290,000‌	Wells Fargo & Co., 3.00%, 10/23/26		314,471‌
				852,431‌
Beverages (1.0%)
	240,000‌	PepsiCo, Inc., 2.75%, 3/19/30, Callable 12/19/29 @ 100*		255,994‌
Capital Markets (1.2%)
	290,000‌	Goldman Sachs Group, Inc., 3.50%, 11/16/26, Callable 11/16/25 @ 100 *		316,962‌
Diversified Financial Services (1.2%)
	300,000‌	National Rural Utilities Cooperative Finance Corp., 3.25%, 11/1/25, Callable 8/1/25 @ 100 *		326,226‌
Electric Utilities (1.1%)
	275,000‌	Entergy Mississippi LLC, 3.25%, 12/1/27, Callable 9/1/27 @ 100 *		300,246‌
Entertainment (2.1%)
	215,000‌	The Walt Disney Co., 2.00%, 9/1/29, Callable 6/1/29 @ 100*		214,109‌
	300,000‌	Walt Disney Co. (The), 3.35%, 3/24/25		327,238‌
				541,347‌
Equity Real Estate Investment Trusts (0.5%)
	136,851	‌  JBG/Rockville NCI Campus LLC, Series 2010-A, 3.90%, 7/15/23 (b)		139,666‌
Food Products (1.2%)
	300,000‌	Mars, Inc., 3.20%, 4/1/30, Callable 1/1/30 @ 100 *(b)		325,351‌
Health Care Providers & Services (2.5%)
	225,000‌	Ascension Health, Series B, 2.53%, 11/15/29, Callable 8/15/29 @ 100 *		233,407‌
	370,000‌	Sutter Health, 3.70%, 8/15/28, Callable 5/15/28 @ 100*		409,005‌
				642,412‌
Hotels, Restaurants & Leisure (1.8%)
	425,000‌	Hyatt Hotels Corp., 4.38%, 9/15/28, Callable 6/15/28 @ 100*		463,784‌
Household Durables (1.7%)
	400,000	Harman International Industries, Inc., 4.15%, 5/15/25, Callable 2/15/25 @ 100 *		440,784‌
Insurance (1.2%)
	300,000‌	Jackson National Life Global Funding, 2.65%, 6/21/24 (b)		316,073‌
Internet & Direct Marketing Retail (1.4%)
	335,000‌	Expedia Group, Inc., 3.80%, 2/15/28, Callable 11/15/27 @ 100*		361,138‌
Oil, Gas & Consumable Fuels (1.5%)
	380,000‌	HollyFrontier Corp., 2.63%, 10/1/23		392,815‌
Semiconductors & Semiconductor Equipment (2.0%)
	460,000‌	Broadcom, Inc., 4.75%, 4/15/29, Callable 1/15/29 @ 100*		526,489‌
Technology Hardware, Storage & Peripherals (1.5%)
	350,000‌	Apple, Inc., 3.20%, 5/11/27, Callable 2/11/27 @ 100*		386,700‌
Total Corporate Bonds (Cost $7,176,163)				7,335,742‌

Shares or
Principal
Amount		Security Description		Value
Taxable Municipal Bonds (18.1%)
Alabama (1.2%)
$	300,000‌	The Water Works Board City of Birmingham Revenue, 2.60%, 1/1/27	$	322,743‌
California (2.4%)
	600,000‌	Riverside Unified School District, GO, 2.27%, 2/1/25		635,276‌
Colorado (1.1%)
	150,000‌	Colorado Housing and Finance Authority Revenue, Series I-1, Class I, 0.86%, 11/1/23, GNMA: GOV. NATL MTGE ASSOCIATION		150,950‌
	150,000‌	Colorado Housing and Finance Authority Revenue, Series I-1, Class I, 1.11%, 5/1/25, GNMA: GOV. NATL MTGE ASSOCIATION		150,666‌
				301,616‌
Michigan (1.1%)
	300,000‌	River Rouge School District, GO, 1.89%, 5/1/30, Insured by: Q-SBLF		294,738‌
New York (2.4%)
	300,000‌	New York City Housing Development Corp. Revenue, Series L, 2.84%, 11/1/28, Continuously Callable @ 100		315,345‌
	300,000	New York City Transitional Finance Authority Revenue, 2.63%, 11/1/29		318,285‌
				633,630‌
Rhode Island (1.6%)
	400,000‌	Rhode Island Convention Center Authority Revenue, 3.15%, 5/15/25		412,142‌
Texas (3.1%)
	500,000‌	Austin Community College District Revenue, 0.93%, 2/1/25		498,875‌
	300,000‌	Midland County Fresh Water Supply District No. 1 Revenue, 2.37%, 9/15/26		310,570‌
				809,445‌
Utah (1.1%)
	300,000‌	Utah Transit Authority Revenue, 2.04%, 12/15/31, Continuously Callable @ 100		299,741‌
Virginia (1.1%)
	275,000‌	Virginia Housing Development Authority Revenue, Series F, 1.65%, 7/1/26, HUD: US DEPT OF HSG AND URBAN DEV		279,589‌
Washington (1.2%)
	300,000‌	Pierce County School District No 10 Tacoma, GO, 0.53%, 12/1/23, SCH BD GTY		302,002‌
Wisconsin (1.8%)
	465,000‌	Public Financial Authority Wisconsin Revenue, 4.45%, 10/1/25, Insured by: AGC		482,951‌
Total Taxable Municipal Bonds (Cost $4,662,970)				4,773,873‌
U.S. Government Agency Securities (2.1%)
Federal Home Loan Banks
	275,000‌	0.65%, 4/28/26, Callable 7/28/21 @ 100 *(a)		275,098‌
	285,000	1.30%, 3/17/27, Callable 6/17/21 @ 100*		284,306
Total U.S. Government Agency Securities (Cost $560,000)				559,404
U.S. Treasury Obligations (13.2%)
U.S. Treasury Notes
	1,943,000‌	2.00%, 4/30/24		2,039,239‌
	1,332,000‌	2.25%, 2/15/27		1,426,229‌
Total U.S. Treasury Obligations (Cost $3,455,057)				3,465,468‌

See notes to the schedule of portfolio investments.

- 10 -

Schedule of Portfolio Investments	Moderate Duration Fund
May 31, 2021 (Unaudited)	Concluded

Shares or Principal Amount		Security Description	Value
Investment in Affiliates (4.3%)
	1,118,444	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.1%(d)	$	1,118,444
Total Investment in Affiliates (Cost $1,118,444)				1,118,444
Total Investments (Cost $25,865,072) - 99.7%				26,222,268
Other assets in excess of liabilities — 0.3%				88,477
Net Assets - 100.0%			$	26,310,745

(a)	The rate for certain asset-backed and mortgage-backed securities may vary based on factors relating to the pool of assets underlying the security. The rate presented is the rate in effect at May 31, 2021.
(b)	Represents a restricted security, purchased under Rule 144A, Section 4(2), which is exempt from registration under the Securities Act of 1933, as amended. The security has been deemed liquid according to the policies and procedures adopted by the Board of Trustees.
(c)	Step Bond: Coupon rate is set for an initial period and then increased to a higher coupon rate at a specified date. The rate shown is the rate in effect at May 31, 2021.
(d)	Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.
*	Represents next call date. Additional subsequent call dates and amounts may apply to this security.
†	Mortgage backed securities are classified based on the characteristics of their underlying collateral, the fixed vs. variable nature of the obligations, and the credit standing of the mortgagors. The fixed or variable rate nature of securities interest payments to which the fund is entitled may not coincide with the payment nature of the collateral underlying the securities.

AGC	Assured Guaranty Corporation
GNMA	Government National Mortgage Association
GO	General Obligation
H15T1Y	1 Year Treasury Constant Maturity Rate
LIBOR	London Interbank Offered Rate
Q-SBLF	Qualified School Bond Loan Fund
SCH BD GTY	School Board Guaranty
T10Y	10 Year Treasury Constant Maturity Rate
T7Y	7 Year Treasury Constant Maturity Rate
US0001M	1 Month US Dollar LIBOR
US0003M	3 Month US Dollar LIBOR
US0012M	12 Month US Dollar LIBOR

See notes to the schedule of portfolio investments.

- 11 -

Schedule of Portfolio Investments	Bond Fund
May 31, 2021 (Unaudited)

Shares or Principal  Amount		Security Description		Value
Asset Backed Securities (8.9%)
$	679,809	Bayview Opportunity Master Fund IVb Trust, Series 2017-SPL4, Class A, 3.50%, 1/28/55, Callable 7/28/21 @ 100*(a)(b)	$	697,766‌
	20,931	Bear Stearns Asset Backed Securities, Inc., Series 2003-AC7, Class A1, 5.50%, 1/25/34, Callable 6/25/21 @ 100*(a)(c)		21,230
	634,280	‌BRE Grand Islander Timeshare Issuer LLC, Series 2019-A, Class B, 3.78%, 9/26/33, Callable 4/25/26 @ 100*(b)		661,781
	967,500	DB Master Finance LLC, Series 2017-1A, Class A2I, 3.63%, 11/20/47, Callable 11/20/21 @ 100*(b)		981,819‌
	838,062	Longtrain Leasing III LLC, Series 2015-1A, Class A2, 4.06%, 1/15/45, Callable 1/15/25 @ 100*(b)		852,207‌
	31	RAAC, Series 2004-SP1, Class AI4, 5.29%, 8/25/27, Callable 6/25/21 @ 100*(a)		31
	415,000	Sabey Data Center Issuer LLC, Series 2020-1, Class A2, 3.81%, 3/20/45, Callable 11/20/23 @ 100*(b)		442,399‌
	928,625‌	Stack Infrastructure Issuer LLC, Series 2019-1A, Class A2, 4.54%, 2/25/44, Callable 2/25/23 @ 100*(b)		986,781
	31,706‌	Structured Asset Securities Corp., Series 2003-AL2, Class A, 3.36%, 1/25/31, Callable 6/25/21 @ 100*(b)		31,640‌
	937,542	Textainer Marine Containers VIII, Ltd., Series 2AA, Class A, 2.10%, 9/20/45, Callable 9/20/22 @ 100*(b)		949,676‌
	1,022,875	TIF Funding II LLC, Series 2021-1A, Class A, 1.65%, 2/20/46, Callable 2/20/23 @ 100*(b)		1,005,290‌
	985,833‌	Triton Container Finance VIII LLC, Series 2021-1A, Class A, 1.86%, 3/20/46, Callable 4/20/23 @ 100*(b)		977,628‌
	500,000	TRP-TRIP Rail Master Funding LLC, Series 2021-2, Class A, 2.15%, 6/19/51, Callable 6/17/22 @ 100*(b)		500,575‌
	280,200‌	UBS Commercial Mortgage Trust, Series 2018-C10, Class A1, 3.18%, 5/15/51, Callable 3/15/23 @ 100*		286,576‌
	600,000	Willis Engine Structured Trust VI, Series 2021-A, Class A, 3.10%, 5/15/46, Callable 5/15/29 @ 100*		599,969‌
	530,000	ZAXBY'S Funding LLC, Series 2021-1A, Class A2, 3.24%, 7/30/51, Callable 7/30/25 @ 100*(b)		530,000‌
Total Asset Backed Securities (Cost $9,447,283)				9,525,368‌

Mortgage Backed Securities† (17.1%)
Alt-A - Adjustable Rate Mortgage Backed Securities (0.5%)
	424,611‌	Bear Stearns Alternative-A Trust, Series 2005-7, Class 11A1, 0.65% (US0001M + 54 bps), 8/25/35, Callable 6/25/21 @ 100	428,107‌
	62,949	‌Bear Stearns Alternative-A Trust, Series 2006-6, Class 32A1, 3.07%, 11/25/36, Callable 5/25/22 @ 100*(a)	42,093
	7,164	JPMorgan Alternative Loan Trust, Series 2006-S4, Class A6, 5.71%, 12/25/36, Callable 6/25/21 @ 100*(a)(c)	7,264‌
			477,464‌

Shares or Principal  Amount		Security Description		Value
Mortgage Backed Securities†, continued
Alt-A - Fixed Rate Mortgage Backed Securities (0.7%)
$	11,380	Bank of America Alternative Loan Trust, Series 2006-4, Class CB1, 6.50%, 5/25/46, Callable 6/25/21 @ 100*	$	11,367‌
	32,497‌	Chaseflex Trust, Series 2005-2, Class 1A1, 6.00%, 6/25/35, Callable 6/25/21 @ 100*		28,813‌
	22,511‌	Chaseflex Trust, Series 2007-1, Class 1A3, 6.50%, 2/25/37, Callable 6/25/21 @ 100*		12,016‌
	53,951	Countrywide Alternative Loan Trust, Series 2005- 46CB, Class A3, 5.50%, 10/25/35, Callable 6/25/21 @ 100*		49,862‌
	7,165‌	Countrywide Alternative Loan Trust, Series 2006-8T1, Class 2A3, 5.50%, 4/25/36, Callable 6/25/21 @ 100*		6,827‌
	8,062‌	Countrywide Alternative Loan Trust, Series 2004-22CB, Class 1A1, 6.00%, 10/25/34, Callable 6/25/21 @ 100*		8,314‌
	25,324‌	Countrywide Alternative Loan Trust, Series 2006-8T1, Class 1A4, 6.00%, 4/25/36, Callable 6/25/21 @ 100*		17,636‌
	165,817	Countrywide Alternative Loan Trust, Series 2007-9T1, Class 1A7, 6.00%, 5/25/37, Callable 6/25/21 @ 100*		109,597‌
	185,807	Countrywide Alternative Loan Trust, Series 2006-36T2, Class 2A4, 6.25%, 12/25/36, Callable 10/25/27 @ 100*		118,479‌
	3,376‌	Master Alternative Loans Trust, Series 2003-8, Class 3A1, 5.50%, 12/25/33, Callable 6/25/21 @ 100*		3,402‌
	2,608‌	Master Alternative Loans Trust, Series 2004-13, Class 8A1, 5.50%, 1/25/25, Callable 6/25/21 @ 100*		2,414‌
	18,430‌	Master Alternative Loans Trust, Series 2005-3, Class 1A1, 5.50%, 4/25/35, Callable 8/25/22 @ 100*		18,660‌
	45,000	Master Alternative Loans Trust, Series 2004-3, Class 3A1, 6.00%, 4/25/34, Callable 6/25/21 @ 100*		45,583‌
	38,969‌	Master Alternative Loans Trust, Series 2004-6, Class 10A1, 6.00%, 7/25/34, Callable 6/25/21 @ 100*		40,621‌
	19,629‌	Master Alternative Loans Trust, Series 2004-6, Class 7A1, 6.00%, 7/25/34, Callable 6/25/21 @ 100*		20,453‌
	17,492‌	Master Alternative Loans Trust, Series 2005-3, Class 7A1, 6.00%, 4/25/35, Callable 12/25/21 @ 100*		17,260‌
	2,018‌	Master Alternative Loans Trust, Series 2003-7, Class 5A1, 6.25%, 11/25/33, Callable 6/25/21 @ 100*		2,092‌
	9,364‌	Master Alternative Loans Trust, Series 2004-3, Class 2A1, 6.25%, 4/25/34, Callable 6/25/21 @ 100*		9,498‌
	14,456‌	Residential Accredit Loans, Inc., Series 2006-QS5, Class A9, 6.00%, 5/25/36, Callable 6/25/21 @ 100*		13,810‌
	191,552‌	Residential Asset Securitization Trust, Series 2005-A9, Class A3, 5.50%, 7/25/35, Callable 6/25/21 @ 100*		154,256‌

See notes to the schedule of portfolio investments.

- 12 -

Schedule of Portfolio Investments	Bond Fund
May 31, 2021 (Unaudited)	Continued

Shares or Principal  Amount		Security Description		Value
Mortgage Backed Securities†, continued
Alt-A - Fixed Rate Mortgage Backed Securities, continued:
$	117,584‌	Residential Asset Securitization Trust, Series 2006-A2, Class A3, 6.00%, 5/25/36, Callable 3/25/22 @ 100*	$	70,130‌
Prime Adjustable Rate Mortgage Backed Securities (2.3%)				761,090‌
	4,653	JPMorgan Mortgage Trust, Series 2006-A4, Class 3A1, 2.97%, 6/25/36, Callable 6/25/21 @ 100*(a)		3,896‌
	140,524‌	JPMorgan Mortgage Trust, Series 2005-A6, Class 2A4, 3.01%, 8/25/35, Callable 6/25/21 @ 100*(a)		142,278‌
	1,339,770‌	LSTAR Securities Investment, Ltd., Series 2019-4, Class A1, 2.61% (US0001M + 150 bps), 5/1/24(b)		1,332,839‌
	500,000‌	Mello Warehouse Securitization Trust, Series 2021-1, Class A, 0.81% (US0001M + 70 bps), 2/25/55, Callable 2/25/24 @ 100*(b)		500,596‌
	150,000	Mello Warehouse Securitization Trust, Series 2021-1, Class 21-C, 1.21% (US0001M + 110 bps), 2/25/55, Callable 2/25/24 @ 100*(b)		150,411‌
	270,000‌	Mello Warehouse Securitization Trust, Series 2020-2, Class C, 1.39% (US0001M + 130 bps), 11/25/53, Callable 12/25/23 @ 100*(b)		270,676‌
	15,360‌	MLCC Mortgage Investors, Inc., Series 2004-HB1, Class A3, 1.94%, 4/25/29, Callable 6/25/21 @ 100*(a)		15,050‌
	4,363‌	Structured Adjustable Rate Mortgage Loan Trust, Series 2006-5, Class 4A1, 2.75%, 6/25/36, Callable 6/25/21 @ 100*(a)		3,437‌
Prime Fixed Mortgage Backed Securities (3.4%)				2,419,183‌
	2,882‌	Chase Mortgage Finance Corp., Series 2002-S4, Class A23, 6.25%, 3/25/32, Callable 6/25/21 @ 100*		2,347‌
	130,175‌	Chaseflex Trust, Series 2006-2, Class A5, 4.51%, 9/25/36, Callable 8/25/22 @ 100*(a)		131,168‌
	20,247‌	Citigroup Mortgage Loan Trust, Inc., Series 2005-1, Class 3A1, 6.50%, 4/25/35		21,352‌
	2,000‌	Countrywide Home Loans, Series 2004-8, Class 1A3, 5.50%, 7/25/34, Callable 6/25/21 @ 100*		2,009‌
	34,352	Countrywide Home Loans, Series 2005-J1, Class 1A8, 5.50%, 2/25/35, Callable 6/25/21 @ 100*		34,815‌
	4,377‌	Countrywide Home Loans, Series 2004-18, Class A1, 6.00%, 10/25/34, Callable 6/25/21 @ 100*		4,517‌
	4,752‌	Countrywide Home Loans, Series 2004-21, Class A10, 6.00%, 11/25/34, Callable 6/25/21 @ 100*		4,950‌
	77,059‌	Countrywide Home Loans, Series 2007-J3, Class A10, 6.00%, 7/25/37, Callable 6/25/21 @ 100		50,347‌
	95,576‌	Credit Suisse First Boston Mortgage Securities Corp., Series 2005-9, Class 3A1, 6.00%, 10/25/35, Callable 6/25/21 @ 100*		43,142‌
	11‌	Credit Suisse Mortgage Capital Certificates, Series 2006-8, Class 1A1, 4.50%, 10/25/21, Callable 6/25/21 @ 100*		11‌
	113‌	First Nationwide Trust, Series 2001-3, Class 1A1, 6.75%, 8/21/31		118‌

Shares or Principal  Amount		Security Description		Value
Mortgage Backed Securities†, continued
Prime Fixed Mortgage Backed Securities, continued:
$	127,418	Flagstar Mortgage Trust, Series 2019-2, Class A3, 3.50%, 12/25/49, Callable 9/25/23 @ 100*(a)(b)	$	127,836‌
	1,677	GMAC Mortgage Corp. Loan Trust, Series 2003- GH2, Class A4, 5.50%, 10/25/33, Callable 6/25/21 @ 100*(a)(c)		1,721‌
	17,983	JPMorgan Mortgage Trust, Series 2006-A2, Class 3A2, 2.72%, 4/25/36, Callable 7/25/21 @ 100*(a)		16,565‌
	22,328	JPMorgan Mortgage Trust, Series 2004-S2, Class 4A5, 6.00%, 11/25/34, Callable 6/25/21 @ 100*		22,316‌
	1,000,000	Mello Mortgage Capital Acceptance Trust, Series 2021-MTG2, Class A10, 2.50%, 6/1/51(a)(b)		1,023,594‌
	24,762‌	Morgan Stanley Mortgage Loan Trust, Series 2004-3, Class 3A, 6.00%, 4/25/34, Callable 2/25/24 @ 100*		26,357‌
	650,633	New Residential Mortgage Loan Trust, Series 2019-NQM3, Class A1, 2.80%, 7/25/49, Callable 6/25/21 @ 100*(a)(b)		654,497‌
	4,294	Nomura Asset Acceptance Corp., Series 2003-A1, Class A2, 6.00%, 5/25/33, Callable 6/25/21 @ 100*		4,333‌
	115,251‌	RAAC, Series 2004-SP2, Class A22, 6.00%, 1/25/32, Callable 6/25/21 @ 100*		115,632‌
	331,191‌	Sequoia Mortgage Trust, Series 2013-1, Class 2A1, 1.86%, 2/25/43, Callable 6/25/21 @ 100*(a)(b)		332,071‌
	36,782	TBW Mortgage Backed Pass-Through Certificates, Series 2006-2, Class 7A1, 7.00%, 7/25/36, Callable 6/25/21 @ 100*		7,585‌
	207,005‌	Washington Mutual Mortgage Pass-Through Certificates, Series 2005-3, Class 1CB5, 5.50%, 5/25/35, Callable 6/25/21 @ 100*		206,127‌
	5,566	Washington Mutual Mortgage Pass-Through Certificates, Series 2004-CB1, Class 4A, 6.00%, 6/25/34, Callable 6/25/21 @ 100*		5,851‌
	52,943	Washington Mutual Mortgage Pass-Through Certificates, Series 2004-RA1, Class 2A, 7.00%, 3/25/34, Callable 5/25/28 @ 100*		56,358‌
	223,681	Wells Fargo Mortgage Backed Securities Trust, Series 2019-4, Class A3, 3.43%, 9/25/49, Callable 12/25/22 @ 100*(a)(b)		224,122‌
	224,668‌	Wells Fargo Mortgage Backed Securities Trust, Series 2019-3, Class A1, 3.50%, 7/25/49, Callable 7/25/22 @ 100*(a)(b)		228,492‌
	213,600‌	WinWater Mortgage Loan Trust, Series 2015-1, Class A1, 3.50%, 1/20/45, Callable 9/20/21 @ 100*(a)(b)		217,038‌
				3,565,271‌
Subprime Mortgage Backed Securities (1.0%)
	418,282	Towd Point Mortgage Trust, Series 2017-6, Class A1, 2.75%, 10/25/57, Callable 7/25/24 @ 100*(a)(b)		430,150‌
	187,682	Towd Point Mortgage Trust, Series 2018-1, Class A1, 3.00%, 1/25/58, Callable 7/25/25 @ 100*(a)(b)		194,236‌
	446,886‌	Towd Point Mortgage Trust, Series 2018-2, Class A1, 3.25%, 3/25/58, Callable 11/25/25 @ 100*(a)(b)		464,724‌
				1,089,110‌

See notes to the schedule of portfolio investments.

- 13 -

Schedule of Portfolio Investments	Bond Fund
May 31, 2021 (Unaudited)	Continued

Shares or Principal  Amount		Security Description	Value
Mortgage Backed Securities†, continued
U.S. Government Agency Mortgage Backed Securities (9.2%)
$	150,222‌	Fannie Mae, Series 2010-102, Class PE, 2.00%, 9/25/40	$ 154,771‌
	271,711‌	Fannie Mae, Series 2012-111, Class EC, 2.00%, 12/25/41	279,826‌
	427,616‌	Fannie Mae, Series 2012-30, Class BA, 2.00%, 6/25/41	441,831‌
	414,486‌	Fannie Mae, Series 2012-83, Class AH, 2.00%, 11/25/41	425,474‌
	202,014‌	Fannie Mae, Series 2013-18, Class 10A1, 2.00%, 12/25/42	207,579‌
	177,980‌	Fannie Mae, Series 2013-23, Class AB, 2.00%, 2/25/43	184,544‌
	662,242‌	Fannie Mae, Series 2020-54, Class TA, 2.00%, 5/25/43	681,055‌
	238,110‌	Fannie Mae, Series 2012-30, Class CB, 2.25%, 10/25/41	246,634‌
	78,270‌	Fannie Mae, Series 2013-74, Class 10A1, 2.25%, 6/25/42(a)	81,029‌
	10,375‌	Fannie Mae, 2.43% (H15T1Y + 231 bps), 12/1/27, Pool #422279	10,448‌
	230,106‌	Fannie Mae, Series 2, Class JD, 2.50%, 2/25/50	235,863‌
	150,742‌	Fannie Mae, Series 2010-100, Class LA, 2.50%, 7/25/40	157,321‌
	227,596‌	Fannie Mae, Series 2012-111, Class QC, 2.50%, 5/25/42	237,409‌
	72,610‌	Fannie Mae, Series 2014-61, Class P, 2.50%, 7/25/44	76,063‌
	717,592‌	Fannie Mae, Series 2017-M5, Class A1, 2.74%, 4/25/29	767,801‌
	97,710‌	Fannie Mae, Series 2011-118, Class 10A1, 3.00%,11/25/41	104,711‌
	376,522‌	Fannie Mae, Series 2014-33, Class PE, 3.00%, 4/25/43	394,308‌
	85,409‌	Fannie Mae, Series 2014-72, Class KA, 3.00%, 10/25/44	90,227‌
	338,041‌	Fannie Mae, Series 2015-59, Class LM, 3.00%, 7/25/45	358,230‌
	770,567‌	Fannie Mae, Series 2018-M12, Class A1, 3.55%, 2/25/30	862,820‌
	915,912‌	Fannie Mae, Series 2018-M13, Class A1, 3.70%, 3/25/30(a)	1,039,425‌
	25,069	Fannie Mae, Series 2012-16, Class K, 4.00%, 10/25/41	26,858‌
	14,210‌	Fannie Mae, Series 2002-W11, Class AF5, 4.98%, 11/25/32, Callable 6/25/21 @ 100*(a)(c)	15,241‌
	242‌	Fannie Mae, 5.00%, 8/1/33, Pool #730856	276‌
	126‌	Fannie Mae, 5.00%, 7/1/35, Pool #832198	145‌
	188‌	Fannie Mae, 5.50%, 2/1/33, Pool #683351	217‌
	108‌	Fannie Mae, 5.50%, 9/1/34, Pool #725773	126‌
	1,524‌	Fannie Mae, Series 1998-36, Class ZB, 6.00%, 7/18/28	1,704‌
	2,036‌	Fannie Mae, Series 1993-82, Class H, 7.00%, 5/25/23	2,125‌
	574‌	Fannie Mae, Series 1991-171, Class J, 8.00%, 12/25/21	581‌
	28,322‌	Fannie Mae Whole Loan, Series 2003-W6, Class 6A, 3.36%, 8/25/42, Callable 6/25/21 @ 100*(a)	29,556‌

Shares or Principal  Amount		Security Description		Value
Mortgage Backed Securities†, continued
U.S. Government Agency Mortgage Backed Securities, continued:
$	44,748‌	Freddie Mac, Series 4146, Class 10A1, 1.50%, 10/15/42	$	45,699
	57,257‌	Freddie Mac, Series 3936, Class LA, 2.00%, 6/15/40		57,698‌
	40,915‌	Freddie Mac, Series 3997, Class AE, 2.00%, 4/15/40		41,203
	127,015‌	Freddie Mac, Series 4019, Class GB, 2.00%, 12/15/41		131,379‌
	117,655‌	Freddie Mac, Series 4461, Class EA, 2.00%, 7/15/37		120,821
	3,044‌	Freddie Mac, 2.25% (H15T1Y + 213 bps), 4/1/24, Pool #409624		3,053‌
	364,925‌	Freddie Mac, Series 3913, Class PC, 2.50%, 3/15/41		374,474‌
	112,075‌	Freddie Mac, Series 4009, Class PK, 2.50%, 6/15/41, Callable 10/15/31 @ 100*		116,379‌
	250,240‌	Freddie Mac, Series 4312, Class 10A1, 2.50%, 12/15/41		258,502‌
	122,841‌	Freddie Mac, Series 4316, Class JY, 3.00%, 1/15/44		130,854‌
	206,188‌	Freddie Mac, Series 4348, Class A, 3.00%, 6/15/39		218,826‌
	140,909‌	Freddie Mac, Series 3721, Class PE, 3.50%, 9/15/40		151,955‌
	52,562‌	Freddie Mac, Series 3780, Class MK, 3.50%, 10/15/40		56,595‌
	681‌	Freddie Mac, Series 2610, Class VB, 5.50%, 7/15/24		722‌
	205‌	Freddie Mac, 6.00%, 7/1/35, Pool #A36085		231‌
	1,325‌	Freddie Mac, Series 2148, Class ZA, 6.00%, 4/15/29		1,496‌
	782‌	Freddie Mac, 6.50%, 2/1/36, Pool #G08113		926‌
	9,491‌	Freddie Mac, Series 2036, Class PD, 6.50%, 3/15/28		10,722‌
	473‌	Freddie Mac, Series 2278, Class H, 6.50%, 1/15/31		518‌
	430‌	Freddie Mac, Series 1281, Class I, 8.00%, 5/15/22, Callable 7/15/21 @ 100*		438‌
	159,752‌	Government National Mortgage Assoc., Series 2013-69, 2.00%, 9/20/42		165,792‌
	338,911‌	Government National Mortgage Assoc., Series 2009-94, Class KB, 3.00%, 9/16/39		358,095‌
	133,562‌	Government National Mortgage Assoc., Series 2011-46, Class GJ, 3.25%, 1/16/41(a)		143,717‌
	247,112‌	Government National Mortgage Assoc., Series 2019-85, Class MP, 3.50%, 6/20/49		257,060‌
	21,393‌	Government National Mortgage Assoc., Series 2009-93, Class HG, 4.00%, 9/16/39		22,816‌
	1,206‌	Government National Mortgage Assoc., 7.00%, 9/15/23, Pool #347688		1,222‌
	7,548‌	Government National Mortgage Assoc., 7.00%, 7/15/29, Pool #490215		8,420‌
	2,548‌	Government National Mortgage Assoc., 7.50%, 11/15/23, Pool #354701		2,683‌
				9,796,494
Total Mortgage Backed Securities (Cost $17,668,542)				18,108,612
Corporate Bonds (32.0%)
Aerospace & Defense (1.4%)
	1,450,000‌	Boeing Co. (The), 3.25%, 2/1/28, Callable 12/1/27 @ 100*		1,526,801‌

See notes to the schedule of portfolio investments.

- 14 -

Schedule of Portfolio Investments	Bond Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description		Value
Corporate Bonds, continued
Airlines (1.0%)
$	995,426‌	United Airlines Pass Through Trust, Series 2020-1, Class A, 5.88%, 4/15/29	$	1,100,269‌
Banks (4.3%)
	1,940,000‌	Bank of America Corp., 3.55% (US0003M + 78 bps), 3/5/24, Callable 3/5/23 @ 100 *		2,046,356‌
	1,100,000‌	JPMorgan Chase & Co., 2.52% (SOFR + 204 bps), 4/22/31, Callable 4/22/30 @ 100 *		1,116,376‌
	1,300,000‌	Wells Fargo & Co., 3.00%, 10/23/26		1,409,700‌
				4,572,432‌
Beverages (0.8%)
	800,000‌	PepsiCo, Inc., 2.75%, 3/19/30, Callable 12/19/29 @100*		853,313‌
Capital Markets (2.3%)
	1,300,000‌	Goldman Sachs Group, Inc., 3.50%, 11/16/26, Callable 11/16/25 @ 100 *		1,420,863‌
	1,000,000‌	LSEGA Financing PLC, 1.38%, 4/6/26, Callable 3/6/26 @ 100 *(b)		1,004,796‌
				2,425,659‌
Diversified Financial Services (0.8%)
	850,000‌	Korea Development Bank, 2.75%, 3/19/23		885,334‌
Diversified Telecommunication Services (1.4%)
	1,520,000‌	AT&T, Inc., 3.50%, 9/15/53, Callable 3/15/53 @ 100 *(b)		1,445,783‌
Electric Utilities (1.0%)
	1,000,000‌	Entergy Mississippi LLC, 3.25%, 12/1/27, Callable 9/1/27 @ 100 *		1,091,804‌
Entertainment (0.7%)
	715,000‌	The Walt Disney Co., 2.00%, 9/1/29, Callable 6/1/29 @ 100*		712,038‌
Equity Real Estate Investment Trusts (0.2%)
	205,277‌	JBG/Rockville NCI Campus LLC, Series 2010-A, 3.90%, 7/15/23 (b)		209,500‌
Food Products (2.3%)
	1,059,000‌	Conagra Brands, Inc., 4.60%, 11/1/25, Callable 9/1/25 @ 100*		1,212,027‌
	320,000‌	Mars, Inc., 0.88%, 7/16/26, Callable 6/16/26 @ 100 *(b)		313,779‌
	825,000‌	Mars, Inc., 3.20%, 4/1/30, Callable 1/1/30 @ 100 *(b)		894,716‌
				2,420,522‌
Health Care Providers & Services (3.4%)
	700,000‌	Ascension Health, Series B, 2.53%, 11/15/29, Callable 8/15/29 @ 100 *		726,153‌
	795,000	Montefiore Medical Center, 2.15%, 10/20/26, Callable 4/20/26 @ 100 *		831,703‌
	1,050,000‌	Partners Healthcare Syst, Inc., Series 2020, 3.19%, 7/1/49, Callable 1/1/49 @ 100 *		1,079,167‌
	890,000‌	Sutter Health, 3.70%, 8/15/28, Callable 5/15/28 @100*		983,823‌
				3,620,846‌
Hotels, Restaurants & Leisure (2.9%)
	1,500,000‌	Hyatt Hotels Corp., 4.38%, 9/15/28, Callable 6/15/28 @ 100*		1,636,885‌
	345,000‌	Royal Caribbean Cruises, 5.25%, 11/15/22		356,319‌
	1,000,000‌	Starbucks Corp., 3.75%, 12/1/47, Callable 6/1/47 @ 100*		1,053,660‌
				3,046,864‌
Household Durables (0.7%)
	620,000‌	Harman International Industries, Inc., 4.15%, 5/15/25, Callable 2/15/25 @ 100 *		683,215‌

Shares or
Principal
Amount		Security Description	Value
Corporate Bonds, continued
Insurance (1.1%)
$	1,100,000‌	Jackson National Life Global Funding, 2.65%, 6/21/24 (b)	$	1,158,934‌
Internet & Direct Marketing Retail (1.0%)
	1,000,000‌	Expedia Group, Inc., 3.80%, 2/15/28, Callable 11/15/27 @ 100*		1,078,023‌
IT Services (1.0%)
	1,000,000‌	International Business Machines Corp., 3.50%, 5/15/29		1,103,763‌
Oil, Gas & Consumable Fuels (1.9%)
	1,000,000‌	HollyFrontier Corp., 2.63%, 10/1/23		1,033,723‌
	900,000‌	Marathon Oil Corp., 4.40%, 7/15/27, Callable 4/15/27 @ 100*		1,012,224‌
				2,045,947
Semiconductors & Semiconductor Equipment (1.7%)
	1,245,000	Broadcom, Inc., 4.75%, 4/15/29, Callable 1/15/29 @ 100*		1,424,954‌
	325,000	‌Intel Corp., 3.25%, 11/15/49, Callable 5/15/49 @ 100*		330,135‌
				1,755,089‌
Specialty Retail (1.1%)
	1,000,000	Lowe's Cos., Inc., 4.50%, 4/15/30, Callable 1/15/30 @ 100*		1,169,076‌
Technology Hardware, Storage & Peripherals (1.0%)
	1,000,000‌	Apple, Inc., 3.20%, 5/11/27, Callable 2/11/27 @ 100*		1,104,857‌
Total Corporate Bonds (Cost $32,944,712)				34,010,069‌
Taxable Municipal Bonds (18.9%)
Georgia (1.7%)
	1,665,000‌	State of Georgia, Build America Bonds, GO, Series H,4.50%,11/1/25		1,829,101‌
Kentucky (0.7%)
	750,000‌	Lexington-Fayette Urban County Airport Board Corp. Revenue, 2.84%, 7/1/31		762,387‌
Massachusetts (1.2%)
	1,150,000‌	Massachusetts State College Building Authority Revenue, Series C, 2.44%, 5/1/28, ST APPROP		1,217,291‌
Michigan (1.4%)
	500,000‌	Michigan State Housing Development Authority Revenue, Series B, 2.72%, 10/1/35, Continuously Callable @ 100		497,089‌
	1,000,000‌	Michigan State Housing Development Authority Revenue, Series B, 3.49%, 12/1/40, Continuously Callable @ 100		1,031,460‌
				1,528,549‌
New York (1.3%)
	1,260,000‌	New York City Transitional Finance Authority Revenue, Series F-3, 3.21%, 5/1/29, Continuously Callable @ 100		1,360,273‌
Oklahoma (2.6%)
	500,000‌	Grand River Dam Authority Revenue, Series B, 4.55%, 6/1/39, Continuously Callable @ 100		541,453‌
	450,000‌	The University of Oklahoma Revenue, Series C, 2.45%, 7/1/32, Continuously Callable @ 100		452,446‌
	1,650,000‌	University of Oklahoma Health Sciences Center General Revenue, Series A, 3.87%, 7/1/32, Continuously Callable @ 100		1,793,966‌
				2,787,865‌

See notes to the schedule of portfolio investments.

- 15 -

Schedule of Portfolio Investments	Bond Fund
May 31, 2021 (Unaudited)	Concluded

Shares or
Principal
Amount		Security Description		Value
Taxable Municipal Bonds, continued
Oregon (1.9%)
$	1,000,000	State of Oregon, GO, Series O, 1.60%, 8/1/31, Continuously Callable @ 100	$	979,497
	1,000,000	State of Oregon, GO, Series O, 1.70%, 8/1/32, Continuously Callable @ 100		978,029
				1,957,526
Pennsylvania (1.2%)
	1,110,000	City of Bethlehem Lehigh and Northampton Countries, GO, Series C, 5.15%, 11/1/34, Pre-refunded 11/1/24 @ 100, AGM		1,284,475
Texas (4.8%)
	1,000,000	Arlington Independent School District, GO, 5.00%, 2/15/26, PSF-GTD		1,193,665
	1,000,000	Arlington Independent School District, GO, 5.00%, 2/15/27, PSF-GTD		1,217,236
	675,000	Country of Galveston Texas, Build America Bonds, GO, 5.91%, 2/1/29		800,779
	785,000	Texas Transportation Commission State Highway Fund Revenue, 5.18%, 4/1/30		967,291
	1,000,000	Texas Transportation Commission, GO, 1.78%, 10/1/32		969,342
				5,148,313

Shares or
Principal
Amount		Security Description	Value
Taxable Municipal Bonds, continued
Washington (2.1%)
$	1,200,000	County of King WA Sewer Revenue, Series B, 1.86%, 1/1/33, Continuously Callable @ 100	$	1,185,506
	1,070,000	Pierce County School District No 10 Tacoma, GO, 1.90%, 12/1/33, SCH BD GTY		1,058,044
Total Taxable Municipal Bonds (Cost $19,713,994)				2,243,550
				20,119,330
U.S. Government Agency Securities (2.8%)
Federal Home Loan Banks
	1,000,000	0.65%, 4/28/26, Callable 7/28/21 @ 100*(a)		1,000,357
	1,000,000	1.00%, 4/26/29, Callable 7/26/21 @ 100*(a)		1,000,019
	1,000,000	1.30%, 3/17/27, Callable 6/17/21 @ 100*		997,566
Total U.S. Government Agency Securities (Cost $3,000,000)				2,997,942
U.S. Treasury Obligations (16.0%)
U.S. Treasury Notes
	3,255,000	1.13%, 2/15/31		3,119,205
	4,557,000	1.38%, 10/15/22		4,635,679
	4,547,000	2.00%, 4/30/24		4,772,219
	4,233,000	2.25%, 2/15/27		4,532,452
Total U.S. Treasury Obligations (Cost $16,836,758)				17,059,555
Investment in Affiliates (4.9%)
	5,260,458	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.01%(d)		5,260,458
Total Investment in Affiliates (Cost $5,260,458)				5,260,458
Total Investments (Cost $104,871,747) - 100.6%				107,081,334
Liabilities in excess of other assets — (0.6)%				(655,442	)
Net Assets - 100.0%			$	106,425,892

(a)	The rate for certain asset-backed and mortgage-backed securities may vary based on factors relating to the pool of assets underlying the security. The rate presented is the rate in effect at May 31, 2021.
(b)	Represents a restricted security, purchased under Rule 144A, Section 4(2), which is exempt from registration under the Securities Act of 1933, as amended. The security has been deemed liquid according to the policies and procedures adopted by the Board of Trustees.
(c)	Step Bond: Coupon rate is set for an initial period and then increased to a higher coupon rate at a specified date. The rate shown is the rate in effect at May 31, 2021.
(d)	Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.
*	Represents next call date. Additional subsequent call dates and amounts may apply to this security.
†	Mortgage backed securities are classified based on the characteristics of their underlying collateral, the fixed vs. variable nature of the obligations, and the credit standing of the mortgagors. The fixed or variable rate nature of securities interest payments to which the fund is entitled may not coincide with the payment nature of the collateral underlying the securities.

AGM	Assured Guaranty Municipal Corporation
GO	General Obligation
H15T1Y	1 Year Treasury Constant Maturity Rate
LIBOR	London Interbank Offered Rate
PSF-GTD	Public School Fund Guaranteed
SCH BD GTY	School Board Guaranty
SOFR	Secured Overnight Financing Rate
US0001M	1 Month US Dollar LIBOR
US0003M	3 Month US Dollar LIBOR

See notes to the schedule of portfolio investments.

- 16 -

Schedule of Portfolio Investments	Strategic Enhanced Yield Fund
May 31, 2021 (Unaudited)

Shares or
Principal
Amount		Security Description		Value
Asset Backed Securities (19.9%)
$	375,000	AB Issuer LLC, Series 2021-1, Class A2, 3.73%, 7/30/51, Callable 1/30/26 @ 100*(a)	$	377,121
	151,548	ABFC Trust, Series 2005-AQ1, Class A6, 4.59%, 1/25/35, Callable 6/25/21 @ 100*(b)(c)		157,135
	286,261	ABFC Trust, Series 2005-HE2, Class M3, 0.89% (US0001M + 78 bps), 6/25/35, Callable 6/25/21@100*		287,297
	600,000	Amur Equipment Finance Receivables LLC, Series 2021-1A, Class E, 4.13%, 3/20/28, Callable 2/20/25 @ 100*(d)		599,459
	570,813	Asset Backed Securities Corp. Home Equity Loan Trust, Series 2004-HE5, Class M1, 1.01% (US0001M + 90 bps), 8/25/34, Callable 6/25/21 @ 100*		558,769
	338,753	Bayview Commercial Asset Trust, Series 2004-3, Class A1, 0.46% (US0001M + 56 bps), 1/25/35, Callable 6/25/21 @ 100*(a)		335,598
	19,868	Bayview Financial Mortgage Pass Trust, Series 2005-D, Class AF4, 5.50%, 12/28/35, Callable 6/28/21 @ 100*(b)		19,822
	31,034	Bayview Opportunity Master Fund Trust, Series 2017-RT1, Class A1, 3.00%, 3/28/57, Callable 4/28/22 @ 100*(a)(b)		31,534
	148,483	Bear Stearns Structured Products Trust, Series 2007-EMX1, Class A2, 1.39% (US0001M + 130 bps), 3/25/37, Callable 10/25/22 @ 100*(a)		148,301
	23,428	Centex Home Equity Loan Trust, Series 2002-A, Class AF6, 5.54%, 1/25/32, Callable 6/25/21 @ 100*		24,184
	14,216	Centex Home Equity Loan Trust, Series 2005-A, Class AF5, 5.78%, 1/25/35, Callable 6/25/21 @ 100*(b)(c)		14,192
	52	Countrywide Asset-Backed Certificates Trust, Series 2004-13, Class AF5B, 4.66%, 5/25/35, Callable 6/25/21 @ 100*(b)(c)		52
	163,238	Credit-Based Asset Servicing And Securitization LLC, Series 2005-RP2, Class M2, 1.69% (US0001M + 160 bps), 9/25/35, Callable 3/25/22 @ 100*(a)		165,178
	200,183	Credit-Based Asset Servicing And Securitization LLC, Series 2007-SP1, Class A4, 4.89%, 12/25/37, Callable 6/25/21 @ 100*(a)(b)(c)		203,236
	33,116	GSAA Home Equity Trust, Series 2005-1, Class M1, 5.80%, 11/25/34, Callable 6/25/21 @ 100*(b)(c)		33,603
	244,831	GSAMP Trust, Series 2006-HE1, Class M1, 0.68% (US0001M + 39 bps), 1/25/36, Callable 6/25/21 @ 100*		244,732
	182,490	MASTR Asset Backed Securities Trust, Series 2004-FRE1, Class M6, 2.19% (US0001M + 210 bps), 7/25/34, Callable 6/25/21 @ 100*		182,935
	504,350	Morgan Stanley Dean Witter Capital I, Inc., Series 2003-NC3, Class M1, 1.44% (US0001M + 135 bps), 3/25/33, Callable 6/25/21 @ 100*		507,215
	290,000	Neighborly Issuer LLC, Series 2021-1A, Class A2, 3.58%, 4/30/51, Callable 10/30/26 @ 100*(a)		296,858
	464,250	NovaStar Mortgage Funding Trust, Series 2003-4, Class A1, 0.83% (US0001M + 74 bps), 2/25/34, Callable 6/25/21 @ 100*		457,154

Shares or
Principal
Amount		Security Description	Value
Asset Backed Securities, continued
$	62,084	Quest Trust, Series 2005-X1, Class M2, 1.29% (US0001M + 120 bps), 3/25/35, Callable 6/25/21 @ 100*(a)	$	62,130
	27,413	Residential Asset Mortgage, Series 2004-RS12, Class MI1, 5.62%, 12/25/34, Callable 6/25/21 @ 100*(b)(c)		28,374
	49,423	Residential Asset Securities Corp., Series 2004-KS8, Class MI1, 5.34%, 9/25/34, Callable 6/25/21 @ 100*(b)		50,880
	78,264	Saxon Asset Securities Trust, Series 2007-1, Class A2C, 0.24% (US0001M + 15 bps), 1/25/47, Callable 7/25/23 @ 100*		77,626
	149,272	Specialty Underwriting & Residential Finance, Series 2003-BC4, Class A3B, 4.79%, 11/25/34, Callable 6/25/21 @ 100*(b)		153,599
Total Asset Backed Securities (Cost $4,956,989)				5,016,984
Mortgage Backed Securities† (30.0%)
Alt-A - Fixed Rate Mortgage Backed Securities (3.7%)
	22,030	Bear Stearns Asset-Backed Securities Trust, Series 2004-AC3, Class A1, 5.25%, 6/25/34, Callable 6/25/21 @ 100*(b)(c)		22,742
	15,974	Countrywide Alternative Loan Trust, Series 2004-16CB, Class 1A1, 5.50%, 7/25/34, Callable 6/25/21 @ 100*		16,401
	17,720	Countrywide Alternative Loan Trust, Series 2004-16CB, Class 3A1, 5.50%, 8/25/34, Callable 6/25/21 @ 100*		18,202
	99,860	Countrywide Alternative Loan Trust, Series 2003-22CB, Class 1A1, 5.75%, 12/25/33, Callable 6/25/21 @1 00*		103,159
	36,574	Countrywide Alternative Loan Trust, Series 2004-16CB, Class 4A3, 6.00%, 8/25/34, Callable 6/25/21 @ 100*		37,063
	34,154	Countrywide Alternative Loan Trust, Series 2004-J2, Class 2A1, 6.50%, 3/25/34, Callable 6/25/21 @ 100*		34,910
	12,130	MASTR Alternative Loans Trust, Series 2004-11, Class 6A1, 5.50%, 10/25/34, Callable 6/25/21 @ 100*		12,631
	103,890	MASTR Alternative Loans Trust, Series 2004-7, Class 1A1, 5.50%, 7/25/34, Callable 6/25/21 @ 100*		107,839
	137,667	MASTR Alternative Loans Trust, Series 2003-3, Class 2A5, 6.00%, 5/25/33, Callable 6/25/21 @ 100*		142,880
	37,388	MASTR Alternative Loans Trust, Series 2004-5, Class 2A1, 6.00%, 6/25/34, Callable 6/25/21 @ 100*		38,573
	294,000	Residential Asset Securitization Trust, Series 2003-A7, Class A8, 5.00%, 7/25/33, Callable 6/25/21 @ 100*		307,391
	67,000	Residential Asset Securitization Trust, Series 2003-A10, Class A2, 5.20%, 9/25/33, Callable 6/25/21 @ 100*		67,623
	21,291	Structured Asset Securities Corp., Series 2004-4XS, Class A3A, 5.15%, 2/25/34, Callable 6/25/21 @ 100*(b)(c)		21,470
				930,884

See notes to the schedule of portfolio investments.

- 17 -

Schedule of Portfolio Investments	Strategic Enhanced Yield Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Adjustable Rate Mortgage Backed Securities (13.0%)
$	57,758	Citigroup Mortgage Loan Trust, Inc., Series 2004-UST1, Class A5, 2.13%, 8/25/34, Callable 6/25/21 @ 100*(b)	$	59,045
	100,860	Impac Secured Assets CMN Owner Trust, Series 2003-3, Class A1, 5.10%, 8/25/33, Callable 6/25/21 @ 100*(b)		104,661
	422,028	LSTAR Securities Investment, Ltd., Series 2019-4, Class A1, 2.61% (US0001M + 150 bps), 5/1/24(a)		419,844
	702,249	LSTAR Securities Investment, Ltd., Series 2019-3, Class A2, 3.61% (US0001M + 250 bps), 4/1/24, Callable 5/1/23 @ 100*(a)		704,859
	530,000	LSTAR Securities Investment, Ltd., Series 2019-4, Class A2, 3.61% (US0001M + 250 bps), 5/1/24(a)		543,712
	500,000	Mello Warehouse Securitization Trust, Series 2020-2, Class E, 2.34% (US0001M + 225 bps), 11/25/53, Callable 12/25/23 @ 100*(a)		501,241
	500,000	Mello Warehouse Securitization Trust, Series 2021-1, Class G, 4.48% (US0001M + 438 bps), 2/25/55, Callable 2/25/24 @ 100*(a)		502,484
	136,713	RBSSP Resecuritization Trust, Series 2011-3, Class 2A1, 0.36% (US0001M + 25 bps), 2/26/37(a)		137,147
	38,079	Structured Adjustable Rate Mortgage Loan Trust, Series 2004-12, Class 3A2, 2.48%, 9/25/34, Callable 6/25/21 @ 100*(b)		38,947
	36,046	Structured Adjustable Rate Mortgage Loan Trust, Series 2004-8, Class 3A, 2.65%, 7/25/34, Callable 6/25/21 @ 100*(b)		38,626
	153,094	Terwin Mortgage Trust, Series 2006-9HGA, Class A2, 0.51% (US0001M + 20 bps), 10/25/37, Callable 6/25/21 @ 100*(a)		152,004
	83,404	WinWater Mortgage Loan Trust, Series 2014-1, Class A1, 3.85%, 6/20/44, Callable 1/20/22 @ 100*(a)(b)		84,433
				3,287,003
Prime Fixed Mortgage Backed Securities (8.1%)
	134,861	Alternative Loan Trust, Series 2004-18CB, Class 4A1, 5.50%, 9/25/34, Callable 6/25/21 @ 100*		138,916
	18,725	Banc of America Funding Trust, Series 2004-3, Class 1A9, 5.50%, 10/25/34, Callable 6/25/21 @ 100*		19,061
	345,000	Brean Asset Backed Securities Trust, Series 2021-RM1, Class M1, 1.60%, 10/25/63, Callable 9/25/27 @ 100*(d)		315,486
	8,991	Citicorp Mortgage Securities Trust, Series 2006-3, Class 1A19, 5.75%, 6/25/36, Callable 6/25/21 @ 100*		9,009
	10,625	Citicorp Mortgage Securities Trust, Series 2006-3, Class 1A3, 6.25%, 6/25/36, Callable 6/25/21 @ 100*		10,847
	117,498	Countrywide Home Loans, Series 2005-6, Class 1A3, 5.15%, 4/25/35, Callable 6/25/21 @ 100*		122,819
	27,000	Countrywide Home Loans, Series 2004-10, Class A4, 5.25%, 7/25/34, Callable 6/25/21 @ 100*		28,147
	86,000	Countrywide Home Loans, Series 2004-4, Class A4, 5.25%, 5/25/34, Callable 6/25/21 @ 100*		89,767

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Fixed Mortgage Backed Securities, continued:
$	43,000	Countrywide Home Loans, Series 2004-9, Class A5, 5.25%, 6/25/34, Callable 6/25/21 @ 100*	$	43,860
	225,000	Countrywide Home Loans, Series 2005-5, Class A4, 5.40%, 3/25/35, Callable 6/25/21 @ 100*		228,094
	107,655	Countrywide Home Loans, Series 2004-4, Class A9, 5.50%, 5/25/34, Callable 6/25/21 @ 100*		108,220
	51,000	Countrywide Home Loans, Series 2004-8, Class 1A3, 5.50%, 7/25/34, Callable 6/25/21 @ 100*		51,218
	51,000	Countrywide Home Loans, Series 2004-8, Class 1A7, 5.75%, 7/25/34, Callable 6/25/21 @ 100*		51,789
	10,924	Credit Suisse Mortgage Trust, Series 2013-IVR2, Class AD, 1.55%, 4/25/43, Callable 10/25/22 @ 100*(a)(b)		10,926
	61,990	GMAC Mortgage Loan Trust, Series 2004-J2, Class A8, 5.75%, 6/25/34, Callable 6/25/21 @ 100*		62,969
	102,687	GSR Mortgage Loan Trust, Series 2004-10F, Class 6A1, 5.00%, 9/25/34, Callable 6/25/21 @ 100*		103,763
	255,000	Mello Warehouse Securitization Trust, Series 2021-2, Class F, 4.84% (US0001M + 475 bps), 4/25/55, Callable 4/25/24 @ 100*(a)		255,359
	315,000	NewRez Warehouse Securitization Trust, Series 2021-1, Class F, 5.34% (US0001M + 525   bps), 5/25/55, Callable 5/25/24 @ 100*(a)		316,234
	2,702	Sequoia Mortgage Trust, Series 2013-4, Class A3, 1.55%, 4/25/43, Callable 6/25/22 @ 100*(b)		2,701
	59,000	WaMu Mortgage Pass-Through Certificate, Series 2004-RS1, Class A3, 5.50%, 11/25/33, Callable 6/25/21 @ 100*		60,362
				2,029,547
U.S. Government Agency Mortgage Backed Securities (5.2%)
	73,659	Fannie Mae, Series 2013-56, Class GM, 2.00%, 8/25/41		76,227
	90,317	Fannie Mae, Series 2003-W14, Class 2A, 3.88%, 1/25/43, Callable 6/25/21 @ 100*(b)		94,621
	191,980	Fannie Mae, Series 2003-W13, Class AF5, 4.78%, 10/25/33, Callable 6/25/21 @ 100*(b)(c)		216,717
	129,037	Fannie Mae, Series 2002-W11, Class AF5, 4.98%, 11/25/32, Callable 6/25/21 @ 100*(b)(c)		138,398
	143,651	Fannie Mae, Series 2004-W3, Class A8, 5.50%, 5/25/34, Callable 6/25/21 @ 100*		158,604
	173,408	Fannie Mae, Series 240, Class 11, 9.00%, 9/25/23		187,512
	194,644	Fannie Mae, Series 250, Class 11, 9.00%, 10/25/23		211,204
	178,000	Freddie Mac, 1.50%, 1/27/33, Callable 7/27/21 @ 100*		170,404
	57,895	Freddie Mac, Series 2017-SC01, Class 2A, 3.50%, 12/25/46, Callable 5/25/25 @ 100*		58,301
	3,044	Government National Mortgage Assoc., Series 2013-176, Class BE, 7.16%, 3/16/46, Callable 6/16/21 @ 100*(b)		4,599
				1,316,587
Total Mortgage Backed Securities (Cost $7,467,639)				7,564,021

See notes to the schedule of portfolio investments.

- 18 -

Schedule of Portfolio Investments	Strategic Enhanced Yield Fund
May 31, 2021 (Unaudited)	Concluded

Shares or
Principal
Amount		Security Description	Value
Corporate Bonds (26.6%)
Aerospace & Defense (2.3%)
$	389,000	Boeing Co. (The), 8.75%, 9/15/31	$	572,891
Airlines (3.0%)
	416,780	Alaska Airlines Pass Through Trust, Class B, 8.00%, 2/15/27 (a)		467,898
	284,164	American Airlines Pass-Through Trust, Class A, 4.95%,7/15/24		287,009
				754,907
Banks (3.3%)
	543,000	Citigroup, Inc., 4.00% (H15T5Y + 360 bps), 12/31/99, Callable 12/10/25 @ 100*		553,860
	273,000	Wells Fargo & Co., 3.90% (H15T5Y + 345 bps), 12/31/99, Callable 3/15/26 @ 100*		279,839
				833,699
Capital Markets (4.4%)
	500,000	Goldman Sachs Group, Inc. (The), 3.80% (H15T5Y + 297 bps), 12/31/99, Callable 5/10/26 @ 100*		500,750
	605,000	Goldman Sachs Group, Inc. (The), 5.00% (US0003M + 287 bps), 12/31/99, Callable 11/10/22 @ 100*		608,128
				1,108,878
Chemicals (1.8%)
	400,000	Monsanto Co., 5.50%, 7/30/35		457,608
Oil, Gas & Consumable Fuels (3.4%)
	287,000	HollyFrontier Corp., 4.50%, 10/1/30, Callable 7/1/30 @ 100*		300,858
	26,000	ONEOK, Inc., 5.85%, 1/15/26, Callable 12/15/25 @ 100*		30,836
	425,000	ONEOK, Inc., 6.35%, 1/15/31, Callable 10/15/30 @ 100*		538,911
				870,605
Sovereign Bond (1.8%)
	450,000	International Bank for Reconstruction & Development, 2.70%, 12/28/37, Callable 12/28/22 @ 100*		447,137

Shares or
Principal
Amount		Security Description	Value
Corporate Bonds, continued
Technology Hardware, Storage & Peripherals (1.1%)
$	209,000	Hewlett Packard Enterprise Co., 6.35%, 10/15/45, Callable 4/15/45 @ 100*	$	276,196
Tobacco (5.5%)
	180,000	Altria Group, Inc., 5.95%, 2/14/49, Callable 8/14/48 @ 100*		221,366
	546,000	BAT Capital Corp., 4.91%, 4/2/30, Callable 1/2/30 @ 100*		618,642
	156,000	Philip Morris International, Inc., 6.38%, 5/16/38		217,404
	227,000	Reynolds American, Inc., 8.13%, 5/1/40		323,527
Total Corporate Bonds (Cost $6,689,458)				1,380,939
				6,702,860
U.S. Government Agency Securities (8.0%)
Federal Farm Credit Banks
	1,000,000	1.99%, 9/24/40, Callable 9/24/21 @ 100*		936,263
	150,000	2.00%, 5/14/40, Callable 5/14/25 @ 100*		141,401
	230,000	2.13%, 5/21/40, Callable 6/17/21 @ 100*		221,207
				1,298,871
Federal Home Loan Banks
	220,000	1.92%, 6/4/37, Callable 6/17/21 @ 100*		211,081
	220,000	1.95%, 6/3/36, Callable 6/17/21 @ 100*		214,197
	285,000	2.00%, 5/4/35, Callable 6/17/21 @ 100*		281,892
Total U.S. Government Agency Securities (Cost $2,104,514)				707,170
				2,006,041
Investment Companies (4.3%)
	12,511	iShares IBoxx High Yield Corporate Bond ETF, 4.65%		1,090,709
Total Investment Companies (Cost $1,086,674)				1,090,709
Investment in Affiliates (10.9%)
	2,747,312	Cavanal Hill Government Securities Money Market
		Fund, Select Shares, 0.01%(e)		2,747,312
Total Investment in Affiliates (Cost $2,747,312)				2,747,312
Total Investments (Cost $25,052,586) - 99.7%				25,127,927
Other assets in excess of liabilities — 0.3%				66,165
Net Assets - 100.0%			$	25,194,092

(a)	Represents a restricted security, purchased under Rule 144A, Section 4(2), which is exempt from registration under the Securities Act of 1933, as amended. The security has been deemed liquid according to the policies and procedures adopted by the Board of Trustees.
(b)	The rate for certain asset-backed and mortgage-backed securities may vary based on factors relating to the pool of assets underlying the security. The rate presented is the rate in effect at May 31, 2021.
(c)	Step Bond: Coupon rate is set for an initial period and then increased to a higher coupon rate at a specified date. The rate shown is the rate in effect at May 31, 2021.
(d)	Represents a restricted security, purchased under Rule 144A, Section 4(2), which is exempt from registration under the Securities Act of 1933, as amended. The security has been deemed illiquid according to the policies and procedures adopted by the Board of Trustees. At May 31, 2021, illiquid securities were 3.6% of the Fund's net assets.
(e)	Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.
*	Represents next call date. Additional subsequent call dates and amounts may apply to this security.
†	Mortgage backed securities are classified based on the characteristics of their underlying collateral, the fixed vs. variable nature of the obligations, and the credit standing of the mortgagors. The fixed or variable rate nature of securities interest payments to which the fund is entitled may not coincide with the payment nature of the collateral underlying the securities.

ETF	Exchange Traded Fund
H15T5Y	5 Year Treasury Constant Maturity Rate
LIBOR	London Interbank Offered Rate
US0001M	1 Month US Dollar LIBOR
US0003M	3 Month US Dollar LIBOR

See notes to the schedule of portfolio investments.

- 19 -

Schedule of Portfolio Investments	Ultra Short Tax-Free Income Fund
May 31, 2021 (Unaudited)

Shares or
Principal
Amount		Security Description	Value
Municipal Bonds (104.4%)
Alaska (0.3%)
$	100,000	City of Valdez Alaska Revenue, Series C, 0.02%, 12/1/29, Continuously Callable @ 100, GTY(a)	$	100,000
Colorado (4.3%)
	1,505,000	City of Colorado Springs, Colorado Variable Rate Demand Utilities System Improvement Revenue, Series C, 0.04%, 11/1/40, Continuously Callable @ 100, Barclays Bank(a)		1,505,000
Connecticut (2.2%)
	750,000	Town of Griswold CT, GO, 1.25%, 7/19/21		750,837
District of Columbia (3.8%)
	1,325,000	Metropolitan Washington Airports Authority Revenue, Series D-1, 0.05%, 10/1/39, Continuously Callable @ 100, LOC(a)		1,325,000
Florida (4.0%)
	1,400,000	Palm Beach County Revenue, 0.05%, 7/1/32, Callable 7/1/21 @ 100, Northern Trust Co.*(a)		1,400,000
Illinois (16.7%)
	1,400,000	Channahon Illinois, Morris Hospital Revenue, 0.04%, 12/1/34, Continuously Callable @ 100, U.S. Bank NA(a)		1,400,000
	130,000	City of Monmouth IL, GO, 4.00%, 12/1/21, BAM		132,137
	165,000	City of Waukegan IL Water & Sewer System Revenue, 4.00%, 12/30/21, AGM		168,528
	525,000	Cook County Community Unit School District No 401 Elmwood Park, GO, 3.00%, 12/1/21		532,214
	340,000	Cook County School District No 162 Matteson, GO, Series B, 3.00%, 12/1/21, BAM		344,501
	405,000	Cook County School District No 88 Bellwood, GO, 4.00%,12/1/22		426,903
	145,000	County of Du Page IL, GO, 4.00%, 7/1/21		145,450
	200,000	Kankakee & Will Counties Community Unit School District No 5, GO, 5.00%, 12/1/21, BAM		204,735
	100,000	Sangamon Logan & Menard Counties Community Unit School Dist No 15 Williamsville, GO, 5.00%,12/1/22, BAM		106,402
	1,300,000	Village of Brookfield IL Revenue, 0.07%, 6/1/38, Continuously Callable @100, Northern Trust Co.(a)		1,300,000
	345,000	Village of Franklin Park IL, GO, 3.00%, 7/1/23, AGC: ASSURED GUARANTY CORP		363,535
	170,000	West Chicago Park District, GO, Series B, 3.00%, 12/1/22, BAM		177,075
	500,000	Williamson & Johnson Counties Community Unit School District No 2 Marion, GO, 2.00%, 12/1/21, BAM		503,762
				5,805,242
Indiana (13.5%)
	1,400,000	Beech Grove Central School Building Corp. Revenue, 2.00%, 7/15/21, Continuously Callable @ 100		1,400,680
	500,000	Brownsburg 1999 School Building Corp. Revenue, 1.50%, 5/13/22, Continuously Callable @ 100		502,141
	750,000	Hamilton Southeastern Consolidated School Building Corp. Revenue, 2.00%, 7/15/21		750,866
	750,000	Hamilton Southeastern Schools, GO, Series B, 3.00%, 12/31/21, ST INTERCEPT		761,237
	400,000	Lafayette School Corp., GO, 4.00%, 7/15/21, ST INTERCEPT		401,678

Shares or
Principal
Amount		Security Description	Value
Municipal Bonds, continued
Indiana, continued:
$	850,000	Lafayette School Corp., GO, 4.00%, 1/15/22, ST INTERCEPT	$	868,838
				4,685,440
Kentucky (4.7%)
	380,000	Bowling Green Independent School District Finance Corp. Revenue, 4.00%, 11/1/22, ST INTERCEPT		399,872
	200,000	Kentucky Association of Counties Finance Corp. Revenue, 2.00%, 2/1/23		204,893
	1,000,000	Kentucky Interlocal School Transportation Association, 1.25%, 3/1/23, STATE INTERCEPT PROG FOR HIGHER ED		1,014,528
				1,619,293
Lousiana (1.0%)
	325,000	Lafourche Parish School Board, GO, 5.00%, 3/1/22		336,308
Minnesota (4.0%)
	1,400,000	City of Minneapolis MN Revenue, Series B, 0.06%, 12/1/27, Callable 7/1/21 @ 100, WELLS FARGO*(a)		1,400,000
Mississippi (4.0%)
	400,000	County of Jackson MS Revenue, 0.01%, 6/1/23, Callable 7/1/21 @ 100*(a)		400,000
	1,000,000	Mississippi Business Finance Corp. Revenue, Series G, 0.01%, 11/1/35, Callable 7/1/21 @ 100*(a)		1,000,000
				1,400,000
Missouri (1.2%)
	200,000	Nixa Public Schools, 4.00%, 4/1/22		206,056
	185,000	Nixa Public Schools, 4.00%, 4/1/23		197,123
				403,179
Nevada (3.9%)
	1,350,000	County of Clark Nevada Industrial Development Revenue, Series A, 0.08%, 12/1/39, Continuously Callable @ 100, Bank of America(a)		1,350,000
Oregon (3.5%)
	1,200,000	State of Oregon, GO, 0.05%, 12/1/36, Continuously Callable @ 100, Unicredit SpA(a)		1,200,000
Pennsylvania (4.1%)
	125,000	City of Allentown PA, GO, 4.00%, 10/1/21, BAM		126,491
	1,300,000	Philadelphia Pennsylvania, GO, Series B, 0.04%, 8/1/31, Continuously Callable @ 100, Barclays Bank(a)		1,300,000
				1,426,491
Rhode Island (4.0%)
	1,400,000	Rhode Island Health and Educational Building Corp. Revenue, 0.04%, 9/1/43, Callable 7/1/21 @ 100, Northern Trust Co.*(a)		1,400,000
Tennessee (10.8%)
	400,000	Clarksville Public Building Authority Revenue, 0.04%, 1/1/33, Callable 7/1/21 @ 100, BAM*(a)		400,000
	255,000	County of Fayette TN, GO, 2.00%, 3/1/23		262,573
	500,000	County of Hawkins TN, GO, 3.00%, 3/1/22		510,168
	1,200,000	Loudon Industrial Development Board Revenue, 0.05%, 6/1/23, Continuously Callable @ 100, CITI: CITIGROUP(a)		1,200,000

See notes to the schedule of portfolio investments.

- 20 -

Schedule of Portfolio Investments	Ultra Short Tax-Free Income Fund
May 31, 2021 (Unaudited)	Concluded

Shares or Principal Amount		Security Description	Value
Municipal Bonds, continued
Tennessee, continued:
$	1,400,000	Montgomery County Public Building Authority Revenue, 0.11%, 11/1/27, Callable 7/1/21 @ 100, Bank of America*(a)	$	1,400,000
				3,772,741
Texas (16.0%)
	1,020,000	Austin Texas Hotel Occupancy Tax Revenue, 0.08%, 11/15/29, Continuously Callable @100, JPM(a)		1,020,000‌
	215,000	City of Austin TX Revenue, 5.00%, 11/15/22, Continuously Callable @100, AGC: ASSURED GUARANTY CORP.		219,755‌
	100,000	City of Elgin TX, GO, 4.00%, 7/15/22, AGC: ASSURED GUARANTY CORP.		104,085‌
	100,000	City of Elgin TX, GO, 4.00%, 7/15/22, AGC: ASSURED GUARANTY CORP.		104,085‌
	100,000	City of Elgin TX, GO, 4.00%, 7/15/23, AGC: ASSURED GUARANTY CORP.		107,580‌
	100,000	City of Elgin TX, GO, 4.00%, 7/15/23, AGC: ASSURED GUARANTY CORP.		107,580‌
	200,000	Fort Bend County Municipal Utility District No.130,GO,2.00%,9/1/21,AGM		200,554‌
	265,000	Fort Bend County Municipal Utility District No 130, GO, 2.00%, 9/1/22, AGM		268,526‌
	165,000	Fort Bend County Municipal Utility District No 139, GO, 4.00%, 3/1/22, AGC: ASSURED GUARANTY CORP.		169,548‌
	180,000	Fort Bend County Municipal Utility District No 139, GO, 4.00%, 3/1/23, AGC: ASSURED GUARANTY CORP.		191,060

Shares or Principal Amount		Security Description	Value
Municipal Bonds, continued
Texas, continued:
$	380,000	Fort Bend County Municipal Utility District No 169, GO, 3.00%, 12/1/21, AGM	$	384,744‌
	675,000	Galveston County Municipal Utility District No 56, GO, 4.50%, 12/1/22, AGM		717,064‌
	170,000	Grand Mission Municipal Utility District No 1, GO, 3.00%,9/1/22,AGM		175,722‌
	375,000	Harris County Municipal Utility District NO 278, GO,4.00%,9/1/23		404,626‌
	365,000	Harris County Municipal Utility District No 287, GO, 2.00%, 9/1/21, AGM		366,529‌
	570,000	Harris County Municipal Utility District No 287, GO, 2.00%, 9/1/22, AGM		581,952‌
	125,000	Remington Municipal Utility District No 1, GO, 4.00%,9/1/21,AGM		126,147‌
	165,000	Sienna Plantation Municipal Utility District No 12, GO, 3.00%, 9/1/22, AGC: ASSURED GUARANTY CORP.		170,680‌
	150,000	Spring West Municipal Utility District, GO, 3.00%, 9/1/21,AGM		151,036‌
				5,571,273‌
Wisconsin (2.4%)
	830,000	City of Park Falls WI Water & Sewer System Revenue, 3.00%, 3/1/22		845,132‌
Total Municipal Bonds (Cost $36,277,503)				36,295,936‌
Investment in Affiliates (0.2%)
	57,064	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.01%(b)		57,064‌
Total Investment in Affiliates (Cost $57,064)				57,064‌
Total Investments (Cost $36,334,567) - 104.6%				36,353,000‌
Liabilities in excess of other assets — (4.6)%				(1,587,029	‌)
Net Assets - 100.0%			$	34,765,971‌

(a)	Interest rate is determined by the Remarketing Agent. The rate presented is the rate in effect at May 31, 2021.
(b)	Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.
*	Represents next call date. Additional subsequent call dates and amounts may apply to this security.

AGC	Assured Guaranty Corporation
AGM	Assured Guaranty Municipal Corporation
BAM	Build America Mutual Assurance Company
GO	General Obligation
GTY	Guarantor Agreement
JPM	J.P. Morgan Chase Bank
LOC	Letter of Credit

See notes to the schedule of portfolio investments.

- 21 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)

Shares or Principal Amount		Security Description	Value
Common Stocks (54.6%)
Aerospace & Defense (0.7%)
	317‌	General Dynamics Corp.	$	60,201‌
	41‌	HEICO Corp.		5,759‌
	38‌	HEICO Corp., Class A		5,034‌
	150‌	L3Harris Technologies, Inc.		32,709‌
	257‌	Lockheed Martin Corp.		98,225‌
	75‌	Northrop Grumman Corp.		27,440‌
	62‌	Raytheon Technologies Corp.		5,500‌
	32‌	Teledyne Technologies, Inc.(a)		13,423‌
	245‌	The Boeing Co.(a)		60,520‌
	40‌	TransDigm Group, Inc.(a)		25,954‌
				334,765‌
Air Freight & Logistics (0.1%)
	140‌	United Parcel Service, Inc., Class B		30,044‌
Airlines (1.0%)
	20,000‌	American Airlines Group, Inc.(a)		484,800‌
	694‌	Delta Air Lines, Inc.(a)		33,090‌
	118‌	Southwest Airlines Co.(a)		7,252‌
				525,142‌
Auto Components (0.2%)
	1,563‌	BorgWarner, Inc.		80,166‌
	869‌	Gentex Corp.		30,850‌
	59‌	Lear Corp.		11,408‌
				122,424‌
Automobiles (0.2%)
	167‌	Tesla, Inc.(a)		104,412‌
Banks (1.8%)
	1,872‌	Bank of America Corp.		79,354‌
	728‌	Citigroup, Inc.		57,301‌
	311‌	East West Bancorp, Inc.		23,256‌
	2,388‌	JPMorgan Chase & Co.		392,205‌
	735‌	People's United Financial, Inc.		13,899‌
	69‌	SVB Financial Group(a)		40,219‌
	170‌	The PNC Financial Services Group, Inc.		33,096‌
	1,779‌	Truist Financial Corp.		109,907‌
	2,199‌	U.S. Bancorp		133,655‌
	283‌	Western Alliance Bancorp		28,303‌
				911,195‌
Beverages (0.7%)
	63‌	Coca-Cola Consolidated, Inc.		25,510‌
	567‌	Monster Beverage Corp.(a)		53,451‌
	1,300‌	PepsiCo, Inc.		192,322‌
	1,864‌	The Coca-Cola Co.		103,061‌
				374,344
Biotechnology (1.0%)
	1,515‌	AbbVie, Inc.		171,498‌
	252‌	Amgen, Inc.		59,961‌
	225‌	Biogen, Inc.(a)		60,183‌
	450‌	Eagle Pharmaceuticals,Inc.(a)		17,829‌
	589‌	Exact Sciences Corp.(a)		65,102‌
	308‌	Exelixis, Inc.(a)		6,945‌
	439‌	Gilead Sciences, Inc.		29,022‌
	50‌	Moderna, Inc.(a)		9,251‌
	121‌	Neurocrine Biosciences, Inc.(a)		11,643‌
	31‌	Regeneron Pharmaceuticals, Inc.(a)		15,575‌
	347‌	Sage Therapeutics, Inc.(a)		24,151‌
	37‌	Sarepta Therapeutics, Inc.(a)		2,799‌
	125‌	Vertex Pharmaceuticals, Inc.(a)		26,079‌
				500,038
Building Products (0.3%)
	266‌	Allegion PLC		37,368‌
	171‌	Carrier Global Corp.		7,854‌

Shares or Principal Amount		Security Description	Value
Common Stocks, continued
Building Products, continued:
	184‌	CSW Industrials, Inc.	$	22,415‌
	146‌	Lennox International, Inc.		51,090‌
	366‌	Patrick Industries, Inc.		31,366‌
	245‌	Simpson Manufacturing Co, Inc.		27,518‌
				177,611‌
Capital Markets (2.4%)
	260‌	Ameriprise Financial, Inc.		67,558‌
	83‌	BlackRock, Inc.		72,794‌
	492‌	CME Group, Inc.		107,630‌
	307‌	Cohen & Steers, Inc.		22,451‌
	658‌	Evercore, Inc.		95,976‌
	1,057‌	GAMCO Investors, Inc., Class A		27,070‌
	221‌	Hamilton Lane, Inc., Class A		19,972‌
	313‌	Houlihan Lokey, Inc.		23,441‌
	526‌	Intercontinental Exchange, Inc.		59,375‌
	395‌	LPL Financial Holdings, Inc.		58,413‌
	10‌	MarketAxess Holdings, Inc.		4,665‌
	73‌	Moody's Corp.		24,481‌
	195‌	MSCI, Inc.,Class A		91,285‌
	414‌	Nasdaq, Inc.		69,328‌
	290‌	PJT Partners, Inc., Class A		21,118‌
	187‌	S&P Global, Inc.		70,961‌
	315‌	Stifel Financial Corp.		21,823‌
	332‌	StoneX Group, Inc.(a)		22,476‌
	329‌	T. Rowe Price Group, Inc.		62,954‌
	147‌	The Bank of New York Mellon Corp.		7,656‌
	213‌	The Charles Schwab Corp.		15,730‌
	637‌	The Goldman Sachs Group, Inc.		236,977‌
				1,204,134‌
Chemicals (0.9%)
	578‌	AdvanSix, Inc.(a)		18,299‌
	156‌	Air Products & Chemicals, Inc.		46,747‌
	158‌	Axalta Coating Systems, Ltd.(a)		5,126‌
	1,556‌	CF Industries Holdings, Inc.		82,733‌
	146‌	Chase Corp.		15,476‌
	1‌	Corteva, Inc.		45‌
	1,431‌	Dow, Inc.		97,909‌
	226‌	Ecolab, Inc.		48,608‌
	512‌	Hawkins, Inc.		17,418‌
	159‌	Innospec, Inc.		16,076‌
	465‌	Koppers Holdings, Inc.(a)		16,122‌
	41‌	Linde PLC		12,325‌
	928‌	Olin Corp.		45,370‌
	46‌	PPG Industries, Inc.		8,267‌
	5‌	The Scotts Miracle-Gro Co.		1,087‌
	185‌	Westlake Chemical Corp.		18,661‌
				450,269‌
Commercial Services & Supplies (0.3%)
	279‌	Cintas Corp.		98,638‌
	417‌	Waste Management, Inc.		58,663‌
				157,301‌
Communications Equipment (0.6%)
	144‌	Arista Networks, Inc.(a)		48,870‌
	2,592‌	Cisco Systems, Inc.		137,117‌
	356‌	Palo Alto Networks, Inc.(a)		129,317‌
				315,304‌
Construction & Engineering (0.4%)
	616‌	Jacobs Engineering Group, Inc.		87,521‌
	681‌	Primoris Services Corp.		21,649‌
	867‌	Quanta Services, Inc.		82,668‌

See notes to the schedule of portfolio investments.

- 22 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Continued

Shares or Principal Amount		Security Description	Value
Common Stocks, continued
Construction & Engineering, continued:
	1,013‌	Sterling Construction Co, Inc.(a)	$	22,793‌
				214,631‌
Construction Materials (0.1%)
	177‌	Vulcan Materials Co.		32,448‌
Consumer Finance (0.3%)
	382‌	Capital One Financial Corp.		61,418‌
	663‌	Enova International, Inc.(a)		25,108‌
	587‌	Onemain Holdings, Inc.		33,952‌
	615‌	Synchrony Financial		29,157‌
	157‌	World Acceptance Corp.(a)		25,216‌
				174,851‌
Containers & Packaging (0.5%)
	317‌	Amcor PLC		3,741‌
	263‌	AptarGroup, Inc.		38,742‌
	688‌	Ball Corp.		56,526‌
	1,346‌	Berry Global Group, Inc.(a)		91,811‌
	222‌	Packaging Corp. of America		33,000‌
	669‌	Silgan Holdings, Inc.		28,185‌
	327‌	UFP Technologies, Inc.(a)		17,802‌
				269,807‌
Distributors (0.1%)
	192‌	Genuine Parts Co.		25,175‌
	65‌	Pool Corp.		28,376‌
				53,551‌
Diversified Consumer Services (0.3%)
	113‌	Bright Horizons Family Solutions, Inc.(a)		15,620‌
	476‌	Chegg, Inc.(a)		36,609‌
	152‌	H&R Block, Inc.		3,773‌
	1,758‌	Perdoceo Education Corp.(a)		21,430‌
	1,209‌	Stride, Inc.(a)		32,498‌
	465‌	Terminix Global Holdings, Inc.(a)		22,943‌
				132,873‌
Diversified Financial Services (0.5%)
	499‌	Berkshire Hathaway, Inc., Class B(a)		144,430‌
	2,259‌	Jefferies Financial Group, Inc.		72,582‌
	357‌	Voya Financial, Inc.		23,391‌
				240,403‌
Diversified Telecommunication Services (0.5%)
	3,223‌	AT&T, Inc.		94,853‌
	2,800‌	Verizon Communications, Inc.		158,172‌
				253,025‌
Electric Utilities (0.7%)
	95‌	American Electric Power Co., Inc.		8,170‌
	75‌	Duke Energy Corp.		7,516‌
	249‌	Exelon Corp.		11,235‌
	1,498‌	NextEra Energy, Inc.		109,683‌
	500‌	OGE Energy Corp.		17,250‌
	397‌	Otter Tail Corp.		19,044‌
	686‌	Pinnacle West Capital Corp.		58,022‌
	2,373‌	PPL Corp.		69,078‌
	3,000‌	Spark Energy, Inc., Class A		31,170‌
	87‌	Xcel Energy, Inc.		6,167‌
				337,335‌
Electrical Equipment (0.6%)
	162‌	Acuity Brands, Inc.		30,091‌
	519‌	Emerson Electric Co.		49,663‌
	225‌	Generac Holdings,Inc.(a)		73,962‌
	580‌	Regal-Beloit Corp.		82,493‌
	66‌	Rockwell Automation, Inc.		17,406‌
	1,107‌	Vertiv Holdings Co.		27,476‌
				281,091‌

Shares or Principal Amount		Security Description	Value
Common Stocks, continued
Electronic Equipment, Instruments & Components (0.9%)
	1,254‌	Amphenol Corp., Class A	$	84,344‌
	608‌	CDW Corp.		100,576‌
	2,932‌	Corning, Inc.		127,923‌
	485‌	Keysight Technologies, Inc.(a)		69,054‌
	1,157‌	Kimball Electronics, Inc.(a)		25,894‌
	245‌	National Instruments Corp.		9,996‌
	803‌	Sanmina Corp.(a)		33,814‌
				451,601‌
Energy Equipment & Services (0.2%)
	572‌	Cactus, Inc., Class A		20,043‌
	1,506‌	National Energy Services Reunited Corp.(a)		19,322‌
	2,166‌	Schlumberger NV		67,861‌
				107,226‌
Entertainment (0.7%)
	365‌	Activision Blizzard, Inc.		35,496‌
	1,122‌	Lions Gate Entertainment Corp., Class A(a)		21,857‌
	165‌	Netflix, Inc.(a)		82,964‌
	55‌	Spotify Technology SA(a)		13,286‌
	248‌	Take-Two Interactive Software, Inc.(a)		46,019‌
	666‌	The Walt Disney Co.(a)		118,981‌
	2,797‌	Zynga,Inc.,Class A(a)		30,319‌
				348,922‌
Equity Real Estate Investment Trusts (2.1%)
	1,058‌	American Homes 4 Rent, Class A		40,278‌
	165‌	American Tower Corp.		42,151‌
	869‌	Care Trust REIT, Inc.		20,230‌
	489‌	Corporate Office Properties Trust		13,496‌
	889‌	Crown Castle International Corp.		168,466‌
	1,127‌	CubeSmart		49,351‌
	828‌	Digital Reality Trust, Inc.		125,492‌
	965‌	Duke Realty Corp.		44,834‌
	18‌	Equinix, Inc.		13,261‌
	411‌	Equity LifeStyle Properties, Inc.		29,123‌
	310‌	Equity Residential		24,009‌
	331‌	Extra Space Storage, Inc.		49,587‌
	1,473‌	Getty Realty Corp.		45,854‌
	686‌	Host Hotels & Resorts, Inc.(a)		11,779‌
	91‌	Innovative Industrial Properties,Inc.		16,401‌
	1,358‌	Lamar Advertising Co.		142,346‌
	374‌	PotlatchDeltic Corp.		22,515‌
	390‌	Prologis, Inc.		45,958‌
	135‌	PS Business Parks, Inc.		20,920‌
	167‌	Public Storage		47,174‌
	50‌	SBA Communications Corp.		14,906‌
	46‌	Simon Property Group, Inc.		5,911‌
	252‌	SL Green Realty Corp.		19,963‌
	333‌	Welltower, Inc.		24,898‌
				1,038,903‌
Food & Staples Retailing (0.8%)
	390‌	BJ's Wholesale Club Holdings, Inc.(a)		17,468‌
	280‌	Costco Wholesale Corp.		105,915‌
	320‌	Ingles Markets, Inc., Class A		19,821‌
	1,224‌	Sysco Corp.		99,144‌
	152‌	The Kroger Co.		5,621‌
	145‌	Walgreens Boots Alliance, Inc.		7,636‌
	1,089‌	Wal-Mart Stores, Inc.		154,671‌
				410,276‌
Food Products (0.5%)
	121‌	General Mills, Inc.		7,606‌
	456‌	Ingredion, Inc.		43,288‌
	350‌	Kellogg Co.		22,922‌

See notes to the schedule of portfolio investments.

- 23 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Continued

	Shares or Principal Amount	Security Description		Value
Common Stocks, continued
Food Products, continued:
	165‌	Lamb Weston Holdings, Inc.	$	13,611‌
	93‌	Lancaster Colony Corp.		17,360‌
	1,577‌	Mondelez International, Inc., Class A		100,187‌
	180‌	The Hershey Co.		31,149‌
				236,123‌
Gas Utilities (0.1%)
	666‌	UGI Corp.		30,669‌
Health Care Equipment & Supplies (1.9%)
	1,081‌	Abbott Laboratories		126,099‌
	15‌	ABIOMED, Inc.(a)		4,269‌
	69‌	Align Technology, Inc.(a)		40,720‌
	674‌	Baxter International, Inc.		55,349‌
	246‌	Becton Dickinson & Co.		59,505‌
	683‌	Danaher Corp.		174,944‌
	32‌	DexCom, Inc.(a)		11,820‌
	427‌	Edwards Lifesciences Corp.(a)		40,949‌
	607‌	Hill-Rom Holdings, Inc.		67,547‌
	904‌	Hologic, Inc.(a)		57,006‌
	131‌	IDEXX Laboratories, Inc.(a)		73,112‌
	477‌	Medtronic PLC		60,383‌
	997‌	Quidel Corp.(a)		117,756‌
	15‌	ResMed, Inc.		3,088‌
	54‌	STERIS PLC		10,306‌
	33‌	Teleflex, Inc.		13,272‌
	39‌	The Cooper Cos, Inc.		15,345‌
	1,116‌	Zynex, Inc.(a)		16,986‌
				948,456‌
Health Care Providers & Services (1.4%)
	744‌	Adapthealth Corp.(a)		19,485‌
	315‌	AMN Healthcare Services, Inc.(a)		27,940‌
	450‌	Anthem, Inc.		179,199‌
	96‌	Chemed Corp.		47,169‌
	388‌	CVS Health Corp.		33,539‌
	9‌	Guardant Health, Inc.(a)		1,117‌
	32‌	HCA Healthcare, Inc.		6,873‌
	528‌	Joint Corp. (The)(a)		37,530‌
	180‌	Molina Healthcare, Inc.(a)		45,245‌
	385‌	National Research Corp.		18,415‌
	307‌	Quest Diagnostics,Inc.		40,423‌
	838‌	Select Medical Holdings Corp.		33,579‌
	281‌	The Ensign Group, Inc.		23,379‌
	411‌	UnitedHealth Group, Inc.		169,299‌
				683,192‌
Health Care Technology (0.3%)
	779‌	Computer Programs & System, Inc.		25,216‌
	202‌	Teladoc Health, Inc.(a)		30,417‌
	292‌	Veeva Systems, Inc.(a)		85,072‌
				140,705‌
Hotels, Restaurants & Leisure (2.2%)
	551‌	Darden Restaurants, Inc.		78,920‌
	803‌	DraftKings, Inc., Class A(a)		40,110‌
	114‌	Hilton Worldwide Holdings, Inc.(a)		14,281‌
	170‌	McDonald's Corp.		39,761‌
	22,000‌	Norwegian Cruise Line Holdings, Ltd.(a)		701,800‌
	370‌	Six Flags Entertainment Corp.(a)		16,809‌
	1,635‌	Starbucks Corp.		186,194‌
	72‌	Yum China Holdings, Inc.		4,870‌
	119‌	Yum! Brands, Inc.		14,276‌
				1,097,021‌
Household Durables (0.1%)
	525‌	Garmin, Ltd.		74,676‌

Shares or Principal Amount		Security Description		Value
Common Stocks, continued
Household Products (0.4%)
	356‌	Central Garden & Pet Co.(a)	$	19,555‌
	320‌	Church & Dwight Co, Inc.		27,434‌
	493‌	Colgate-Palmolive Co.		41,303‌
	67‌	Kimberly-Clark Corp.		8,752‌
	163‌	The Clorox Co.		28,807‌
	647‌	The Procter & Gamble Co.		87,248‌
				213,099‌
Independent Power and Renewable Electricity Producers (0.0%^)
	909‌	AES Corp.		23,097‌
	12‌	NRG Energy, Inc.		386‌
				23,483‌
Industrial Conglomerates (0.6%)
	1,111‌	3M Co.		225,577‌
	93‌	Carlisle Cos, Inc.		17,886‌
	257‌	Honeywell International, Inc.		59,344‌
	54‌	Roper Technologies, Inc.		24,301‌
				327,108‌
Insurance (1.3%)
	96‌	AON PLC, Class A.		24,324‌
	213‌	Athene Holdings, Ltd. Class A(a)		13,340‌
	874‌	Brighthouse Financial, Inc.(a)		42,529‌
	27‌	Chubb, Ltd.		4,590‌
	132‌	Cincinnati Financial Corp.		16,066‌
	1,106‌	FNF Group		51,971‌
	1,956‌	Heritage Insurance Holdings		16,293‌
	80‌	Marsh & McLennan Cos., Inc.		11,068‌
	1,931‌	Prudential Financial, Inc.		206,559‌
	395‌	The Allstate Corp.		53,961‌
	165‌	The Hanover Insurance Group, Inc.		23,016‌
	1,087‌	The Hartford Financial Services Group, Inc.		71,035‌
	203‌	The Progressive Corp.		20,113‌
	46‌	Travelers Companies, Inc.		7,346‌
	3,033‌	Unum Group		93,932‌
				656,143‌
Interactive Media & Services (2.1%)
	110‌	Alphabet, Inc., Class A(a)		259,253‌
	139‌	Alphabet, Inc., Class C(a)		335,207‌
	710‌	Cargurus, Inc.(a)		20,036‌
	1,062‌	Facebook, Inc., Class A(a)		349,111‌
	475‌	Snap, Inc, Class A(a)		29,507‌
	497‌	Yelp, Inc.(a)		19,935‌
	735‌	ZoomInfo Technologies, Inc., Class A(a)		32,215‌
				1,045,264‌
Internet & Direct Marketing Retail (3.1%)
	189‌	Amazoncom, Inc.(a)		609,160‌
	307‌	Booking Holdings, Inc.(a)		724,996‌
	405‌	eBay, Inc.		24,656‌
	328‌	Etsy, Inc.(a)		54,031‌
	847‌	Expedia Group, Inc.(a)		149,877‌
				1,562,720‌
IT Services (2.1%)
	272‌	Accenture PLC, Class A		76,748‌
	30‌	Akamai Technologies, Inc.(a)		3,426‌
	819‌	Alliance Data Systems Corp.		99,140‌
	119‌	Automatic Data Processing, Inc.		23,327‌
	82‌	Booz Allen Hamilton Holding Corp.		6,964‌
	96‌	CACI International, Inc., Class A(a)		24,476‌
	612‌	CSG Systems International, Inc.		26,953‌
	774‌	DXC Technology Co.(a)		29,350‌
	192‌	Fidelity National Information Services, Inc.		28,604‌
	94‌	Fiserv, Inc.(a)		10,829‌

See notes to the schedule of portfolio investments.

- 24 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Continued

Shares or Principal Amount		Security Description		Value
Common Stocks, continued
IT Services, continued:
	1,751‌	Hackett Group, Inc. (The)	$	31,185‌
	381‌	International Business Machines Corp.		54,765‌
	21‌	Jack Henry & Associates, Inc.		3,237‌
	188‌	Leidos Holdings, Inc.		19,317‌
	516‌	MasterCard, Inc., Class A.		186,059‌
	96‌	Okta,Inc.(a)		21,354‌
	191‌	Paychex, Inc.		19,318‌
	263‌	Paypal Holdings, Inc.(a)		68,385‌
	434‌	The Western Union Co.		10,620‌
	352‌	TTEC Holdings, Inc.		38,160‌
	56‌	Twilio, Inc., Class A(a)		18,816‌
	643‌	VeriSign, Inc.(a)		141,409‌
	589‌	Visa, Inc., Class A		133,880‌
				1,076,322‌
Leisure Products (0.3%)
	191‌	Hasbro, Inc.		18,330‌
	1,040‌	Peloton Interactive, Inc., Class A(a)		114,723‌
	345‌	YETI Holdings, Inc.(a)		30,222‌
				163,275‌
Life Sciences Tools & Services (1.1%)
	845‌	Agilent Technologies, Inc.		116,720‌
	15‌	Bio-Techne Corp.		6,207‌
	74‌	Charles River Laboratories International, Inc.(a)		25,011‌
	81‌	Illumina, Inc.(a)		32,857‌
	495‌	Iqvia Holdings, Inc.(a)		118,879‌
	149‌	Medpace Holdings, Inc.(a)		24,892‌
	32‌	Mettler-Toledo International, Inc.(a)		41,630‌
	292‌	Thermo Fisher Scientific, Inc.		137,094‌
	130‌	Waters Corp.(a)		41,893‌
				545,183‌
Machinery (1.3%)
	1,571‌	Allison Transmission Holdings, Inc.		66,469‌
	108‌	Caterpillar, Inc.		26,037‌
	56‌	Deere & Co.		20,221‌
	296‌	DMC Global, Inc.(a)		15,679‌
	148‌	Dover Corp.		22,274‌
	1,755‌	Fortive Corp.		127,273‌
	345‌	Graco, Inc.		26,123‌
	1,749‌	Hillenbrand, Inc.		79,754‌
	306‌	IDEX Corp.		68,134‌
	189‌	Illinois Tool Works, Inc.		43,803‌
	142‌	ITT, Inc.		13,334‌
	762‌	Meritor,Inc. (a)		19,812‌
	153‌	Omega Flex, Inc.		22,499‌
	81‌	Otis Worldwide Corp.		6,345‌
	68‌	PACCAR, Inc.		6,226‌
	501‌	The Timken Co.		44,313‌
	281‌	The Toro Co.		31,216‌
				639,512‌
Media (0.8%)
	104‌	Altice USA, Inc., Class A(a)		3,750‌
	6‌	Cable One, Inc.		10,893‌
	3,654‌	Comcast Corp., Class A		209,521‌
	635‌	Discovery, Inc., Class C(a)		19,082‌
	1,241‌	DISH Network Corp., Class A(a)		54,008‌
	1,949‌	Gray Television, Inc.		45,334‌
	1,131‌	MSG Networks, Inc., Class A(a)		17,440‌
	231‌	TechTarget, Inc.(a)		16,242‌
	2,039‌	TEGNA, Inc.		39,536‌
				415,806‌

Shares or Principal Amount		Security Description	Value
Common Stocks, continued
Metals & Mining (0.3%)
	619‌	Commercial Metals Co.	$ 19,480‌
	407‌	Newmont Mining Corp.	29,907‌
	171‌	Reliance Steel & Aluminum Co.	28,740‌
	945‌	Rio Tinto PLC ADR	82,621‌
			160,748‌
Mortgage Real Estate Investment Trusts (0.2%)
	5,392‌	AGNC Investment Corp.	99,968‌
	1,542‌	New Residential Investment Corp.	16,314‌
			116,282‌
Multiline Retail (0.2%)
	218‌	Dollar General Corp.	44,245‌
	293‌	Target Corp.	66,488‌
			110,733‌
Multi-Utilities (0.3%)
	274‌	Black Hills Corp.	18,026‌
	429‌	CenterPoint Energy, Inc.	10,854‌
	55‌	CMS Energy Corp.	3,451‌
	345‌	MDU Resources Group, Inc.	11,613‌
	275‌	NorthWestern Corp.	17,421‌
	546‌	Public Service Enterprise Group, Inc.	33,917‌
	383‌	WEC Energy Group, Inc.	35,968‌
			131,250‌
Oil, Gas & Consumable Fuels (1.3%)
	1,983‌	Antero Midstream Corp.	19,037‌
	737‌	Chevron Corp.	76,493‌
	722‌	Cimarex Energy Co.	48,916‌
	256‌	ConocoPhillips	14,269‌
	261‌	Diamondback Energy, Inc.	20,898‌
	1,468‌	Dorian LPG, Ltd.(a)	20,860‌
	593‌	EQT Corp.(a)	12,382‌
	1,208‌	Equitrans Midstream Corp.	9,954‌
	1,366‌	Exxon Mobil Corp.	79,733‌
	2,090‌	ONEOK, Inc.	110,227‌
	1,314‌	Phillips 66	110,665‌
	329‌	Pioneer Natural Resources Co.	50,071‌
	412‌	Renewable Energy Group, Inc.(a)	25,161‌
	1,078‌	World Fuel Services Corp.	33,127‌
			631,793‌
Paper & Forest Products (0.1%)
	475‌	Boise Cascade Co.	31,345‌
	386‌	Clearwater Paper Corp.(a)	11,013‌
			42,358‌
Personal Products (0.1%)
	63‌	Medifast, Inc.	20,932‌
	962‌	Nature's Sunshine Products, Inc.	19,711‌
	44‌	The Estee Lauder Cos., Inc., Class A	13,487‌
	177‌	USANA Health Sciences, Inc.(a)	18,716‌
			72,846‌
Pharmaceuticals (1.4%)
	1,013‌	Bristol-Myers Squibb Co.	66,575‌
	773‌	Corcept Therapeutics, Inc.(a)	16,697‌
	429‌	Eli Lilly & Co.	85,689‌
	1,743‌	Innoviva, Inc.(a)	23,443‌
	1,586‌	Johnson & Johnson	268,431‌
	980‌	Merck & Co., Inc.	74,372‌
	2,347‌	Pfizer, Inc.	90,899‌
	665‌	Supernus Pharmaceuticals, Inc.(a)	19,850‌
	327‌	Zoetis, Inc.	57,774‌
			703,730‌
Professional Services (0.3%)
	6‌	CoStar Group, Inc.(a)	5,124‌

See notes to the schedule of portfolio investments.

- 25 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description		Value
Common Stocks, continued
Professional Services, continued:
	164‌	FTI Consulting, Inc.(a)	$	22,558‌
	472‌	Kforce, Inc.		29,599‌
	252‌	ManpowerGroup, Inc.		30,489‌
	1,434‌	Mastech Digital, Inc.(a)		22,600‌
	230‌	Robert Half International, Inc.		20,422‌
	25‌	Verisk Analytics, Inc., Class A		4,321‌
				135,113‌
Real Estate Management & Development (0.2%)
	605‌	Exp World Holdings, Inc.(a)		19,517‌
	969‌	Re/MAX Holdings, Inc.		33,925‌
	966‌	The RMR Group, Inc., Class A		37,790‌
				91,232‌
Road & Rail (0.7%)
	414‌	ArcBest Corp.		32,226‌
	333‌	JB Hunt Transport Services, Inc.		57,123‌
	601‌	Lyft, Inc., Class A(a)		34,311‌
	280‌	Old Dominion Freight Line, Inc.		74,326‌
	1,262‌	Uber Technologies, Inc.(a)		64,147‌
	398‌	Union Pacific Corp.		89,443‌
				351,576‌
Semiconductors & Semiconductor Equipment (2.5%)
	339‌	Advanced Micro Devices, Inc.(a)		27,147‌
	1,199‌	Amkor Technology, Inc.		25,299‌
	509‌	Broadcom, Inc.		240,416‌
	30‌	Entegris, Inc.		3,433‌
	1,279‌	Infineon Technologies AG ADR		51,787‌
	1,449‌	Intel Corp.		82,767‌
	134‌	KLA-Tencor Corp.		42,463‌
	203‌	Lam Research Corp.		131,919‌
	311‌	Microchip Technology, Inc.		48,811‌
	677‌	Micron Technology, Inc.(a)		56,963‌
	141‌	NVIDIA Corp.		91,619‌
	249‌	NXP Semiconductors NV		52,644‌
	1,241‌	ON Semiconductor Corp.(a)		49,690‌
	310‌	Power Integrations, Inc.		25,479‌
	507‌	Qorvo, Inc.(a)		92,639‌
	108‌	QUALCOMM, Inc.		14,530‌
	216‌	Skyworks Solutions, Inc.		36,720‌
	751‌	Texas Instruments, Inc.		142,555‌
	383‌	Xilinx, Inc.		48,641‌
				1,265,522‌
Software (3.6%)
	207‌	Adobe, Inc.(a)		104,448‌
	310‌	Alarm.com Holdings, Inc.(a)		25,383‌
	691‌	Anaplan, Inc.(a)		35,593‌
	169‌	Appfolio, Inc., Class A(a)		22,796‌
	198‌	Aspen Technology, Inc.(a)		27,021‌
	1,047‌	Cadence Design Systems, Inc.(a)		132,959‌
	379‌	Citrix Systems, Inc.		43,570‌
	19‌	Crowdstrike Holdings, Inc., Class A(a)		4,221‌
	237‌	DocuSign, Inc.(a)		47,784‌
	291‌	Everbridge, Inc.(a)		34,192‌
	17‌	Fair Isaac Corp.(a)		8,603‌
	210‌	Fortinet, Inc.(a)		45,893‌
	374‌	Intuit, Inc.		164,220‌
	362‌	Manhattan Associates, Inc.(a)		49,225‌
	3,143‌	Microsoft Corp.		784,744‌
	951‌	Oracle Corp.		74,882‌
	284‌	Qualys, Inc.(a)		27,457‌
	108‌	RingCentral, Inc., Class A(a)		28,347‌
	61‌	salesforce.com, Inc.(a)		14,524‌

Shares or
Principal
Amount		Security Description		Value
Common Stocks, continued
Software, continued:
	13‌	ServiceNow, Inc.(a)	$	6,160‌
	233‌	Zendesk, Inc.(a)		31,842‌
	183‌	Zoom Video Communications, Inc., Class A(a)		60,670‌
	168‌	Zscaler, Inc.(a)		32,626‌
				1,807,160‌
Specialty Retail (1.6%)
	178‌	Asbury Automotive Group, Inc.(a)		35,296‌
	740‌	AutoNation, Inc.(a)		75,576‌
	49‌	AutoZone, Inc.(a)		68,923‌
	704‌	Best Buy Co., Inc.		81,833‌
	819‌	Foot Locker, Inc.		51,835‌
	205‌	Lowe's Cos., Inc.		39,940‌
	164‌	O'Reilly Automotive, Inc.(a)		87,760‌
	225‌	Penske Automotive Group, Inc.		19,258‌
	141‌	Ross Stores, Inc.		17,821‌
	577‌	Shoe Carnival, Inc.		38,953‌
	183‌	Sleep Number Corp.(a)		20,403‌
	539‌	The Home Depot, Inc.		171,892‌
	240‌	The TJX Cos., Inc.		16,210‌
	319‌	Williams-Sonoma, Inc.		54,083‌
	138‌	Winmark Corp.		27,023‌
				806,806‌
Technology Hardware, Storage & Peripherals (1.6%)
	6,031‌	Apple, Inc.		751,523‌
	649‌	HP, Inc.		18,970‌
	136‌	NetApp, Inc.		10,523‌
	1,843‌	Pure Storage, Inc.(a)		35,109‌
				816,125‌
Textiles, Apparel & Luxury Goods (0.6%)
	74‌	Deckers Outdoor Corp.(a)		24,822‌
	2,161‌	Hanesbrands, Inc.		42,226‌
	143‌	Lululemon Athletica, Inc.(a)		46,208‌
	385‌	NIKE, Inc., Class B		52,537‌
	1,605‌	VF Corp.		127,951‌
				293,744‌
Thrifts & Mortgage Finance (0.1%)
	427‌	Axos Financial, Inc.(a)		20,244‌
	648‌	Mr Cooper Group, Inc.(a)		22,414‌
				42,658‌
Tobacco (0.1%)
	745‌	Altria Group, Inc.		36,669‌
	322‌	Philip Morris International, Inc.		31,050‌
				67,719‌
Trading Companies & Distributors (0.6%)
	1,041‌	Air Lease Corp.		48,989‌
	112‌	Fastenal Co.		5,941‌
	3,142‌	H&E Equipment Services, Inc.		117,511‌
	1,171‌	MSC Industrial Direct Co., Inc.		110,542‌
	65‌	Watsco, Inc.		18,941‌
				301,924‌
Water Utilities (0.1%)
	218‌	American States Water Co.		17,303‌
	144‌	American Water Works Co., Inc.		22,323‌
	1,255‌	Consolidated Water Co., Ltd.		15,449‌
	1,388‌	Pure Cycle Corp.(a)		19,626‌
				74,701‌
Wireless Telecommunication Services (0.2%)
	592‌	T-Mobile US, Inc.(a)		83,738‌
Total Common Stocks (Cost $16,191,330) ‌				27,540,441

See notes to the schedule of portfolio investments.

- 26 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description	Value
Asset Backed Securities (4.2%)
$	200,000‌	Amur Equipment Finance Receivables IX LLC, Series 1A, Class C, 1.75%, 6/21/27, Callable  2/20/25 @ 100*(b)	$	200,858‌
	147,867‌	CLI Funding VI LLC, Series 2020-3A, Class A, 2.07%, 10/18/45, Callable 11/18/22 @ 100*(b)		149,664‌
	100,000	‌DataBank Issuer, Series 2021-1A, Class A2, 2.06%, 2/27/51, Callable 8/25/24 @ 100*(b)		101,067‌
	193,500	‌DB Master Finance LLC, Series 2017-1A, Class A2I, 3.63%, 11/20/47, Callable 11/20/21 @ 100*(b)		196,364‌
	200,000‌	Domino's Pizza Master Issuer LLC, Series 2021-1A, Class A2I, 2.66%, 4/25/51, Callable 10/25/25 @ 100*(b)		203,208‌
	70,000	Sabey Data Center Issuer LLC, Series 2020-1, Class A2, 3.81%, 3/20/45, Callable 11/20/23 @ 100*(b)		74,622‌
	116,005	‌Saxon Asset Securities Trust, Series 2003-3, Class A5, 4.48%, 12/25/33, Callable 6/25/21 @ 100*(c)(d)		116,583‌
	195,500	‌Stack Infrastructure Issuer LLC, Series 2019-1A, Class A2, 4.54%, 2/25/44, Callable 2/25/23 @ 100*(b)		207,743‌
	187,508‌	Textainer Marine Containers VIII, Ltd., Series 2A- A, Class A, 2.10%, 9/20/45, Callable 9/20/22 @ 100*(b)		189,935‌
	197,167	‌Triton Container Finance VIII LLC, Series 2021-1A, Class A, 1.86%, 3/20/46, Callable 4/20/23 @ 100*(b)		195,526‌
	200,000‌	TRP-TRIP Rail Master Funding LLC, Series 2021-2, Class A, 2.15%, 6/19/51, Callable 6/17/22 @ 100*(b)		200,230‌
	55,082‌	UBS Commercial Mortgage Trust, Series 2018-C10, Class A1, 3.18%, 5/15/51, Callable 3/15/23 @ 100*		56,335‌
	120,000	‌Willis Engine Structured Trust VI, Series 2021-A, Class A, 3.10%, 5/15/46, Callable 5/15/29 @ 100*(b)		119,994‌
	95,000‌	ZAXBY'S Funding LLC, Series 2021-1A, Class A2, 3.24%, 7/30/51, Callable 7/30/25 @ 100*(b)		95,000‌
Total Asset Backed Securities (Cost $2,082,207)				2,107,129‌
Mortgage Backed Securities† (7.2%)
Alt-A - Adjustable Rate Mortgage Backed Securities (0.3%)
	152,347‌	Bear Stearns Alternative-A Trust, Series 2007-2, Class 2A1, 2.93%, 4/25/37, Callable 11/25/22 @ 100*(c)		129,665‌
	869‌	Deutsche Mortgage Securities, Inc., Series 2003-4XS, Class A6A, 5.32% (US0003M + 119 bps), 10/25/33, Callable 6/25/21 @ 100*(d)		872‌
				130,537‌
Alt-A - Fixed Rate Mortgage Backed Securities (0.9%)
	34,478‌	Bank of America Alternative Loan Trust, Series 2005-10, Class 1CB4, 5.50%, 11/25/35, Callable 6/25/21 @ 100*		34,233‌
	49,110	Citi Mortgage Alternative Loan Trust, Series 2007-A2, Class 1A5, 6.00%, 2/25/37, Callable 4/25/22 @ 100*		49,831‌
	21,093	‌Countrywide Alternative Loan Trust, Series 2005-53T2, Class 2A4, 5.50%, 11/25/35, Callable 2/25/22 @ 100*		15,197‌

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
Alt-A - Fixed Rate Mortgage Backed Securities, continued:
$	3,583‌	Countrywide Alternative Loan Trust, Series 2006-8T1, Class 2A3, 5.50%, 4/25/36, Callable 6/25/21 @ 100*	$	3,414‌
	8,994‌	Countrywide Alternative Loan Trust, Series 2006-41CB, Class 2A4, 6.00%, 1/25/37, Callable 10/25/21 @ 100*		7,053‌
	12,861	‌Countrywide Alternative Loan Trust, Series 2004-J2, Class 2A1, 6.50%, 3/25/34, Callable 6/25/21 @ 100*		13,146‌
	60,625	‌Deutsche Alternative-A Securities, Inc. Mortgage Loan Trust, Series 2006-AB2, Class A3, 4.97%, 6/25/36, Callable 6/25/21 @ 100*(c).		60,276‌
	3,899‌	Master Alternative Loans Trust, Series 2004-6, Class 10A1, 6.00%, 7/25/34, Callable 6/25/21 @ 100*		4,064‌
	18,081‌	Master Alternative Loans Trust, Series 2004-8, Class 5A1, 6.00%, 9/25/34, Callable 6/25/21 @ 100*		18,717‌
	59,898‌	Master Alternative Loans Trust, Series 2004-3, Class 5A1, 6.50%, 3/25/34, Callable 6/25/21 @ 100*		60,577‌
	17,849‌	Nomura Asset Acceptance Corp., Series 2005-AP1, Class 2A5, 5.36%, 2/25/35, Callable 6/25/21 @ 100*(c)(d)		18,267‌
	14,869‌	Nomura Asset Acceptance Corp., Series 2005-AP2, Class A5, 5.48%, 5/25/35, Callable 6/25/21 @ 100*(c)(d)		9,888‌
	140,158‌	Nomura Asset Acceptance Corp., Series 2006-AF1, Class 1A2, 6.16%, 5/25/36, Callable 6/25/21 @ 100*(c)		44,612‌
	7,228‌	Residential Accredit Loans, Inc., Series 2006-QS5, Class A9, 6.00%, 5/25/36, Callable 6/25/21@100*		6,905‌
	51,081	Residential Asset Securitization Trust, Series 2005-A9, Class A3, 5.50%, 7/25/35, Callable 6/25/21 @ 100*		41,135‌
	33,596‌	Residential Asset Securitization Trust, Series 2006-A2, Class A3, 6.00%, 5/25/36, Callable 3/25/22 @ 100*		20,037‌
	28,156‌	Washington Mutual Mortgage Pass-Through Certificates, Series 2005-5, Class CB14, 5.50%, 7/25/35, Callable 6/25/21 @ 100*		28,012‌
				435,364‌
Prime Adjustable Rate Mortgage Backed Securities (0.7%)
	6,774	‌Bear Stearns Adjustable Rate Mortgage Trust, Series 2004-6, Class 2A2, 3.44%, 9/25/34, Callable 6/25/21 @ 100*(c)		6,593‌
	6,282‌	Chase Mortgage Finance Corp., Series 2007-A2, Class 10A1, 3.34%, 7/25/37, Callable 6/25/21 @ 100*(c)		5,862‌
	257,906	‌LSTAR Securities Investment, Ltd., Series 2019-4, Class A1, 2.61% (US0001M + 150 bps), 5/1/24(b)		256,571‌
	50,000‌	Mello Warehouse Securitization Trust, Series 2021-1, Class A, 0.81% (US0001M + 70 bps), 2/25/55, Callable 2/25/24 @ 100*(b)		50,060‌
	50,000	‌Mello Warehouse Securitization Trust, Series 2020-2, Class C, 1.39% (US0001M + 130 bps), 11/25/53, Callable 12/25/23 @ 100*(b).		50,125‌
				369,211‌

See notes to the schedule of portfolio investments.

- 27 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
Prime Fixed Mortgage Backed Securities (0.9%)
$	159,195	American Home Mortgage Investment Trust, Series 2005-2, Class 5A4C, 5.91%, 9/25/35, Callable 6/25/21 @ 100*(c)(d)	$	114,476‌
	16,254	‌Banc of America Funding Trust, Series 2006-4, Class A14, 6.00%, 7/25/36, Callable 3/25/36 @ 100*		15,464‌
	23,800	‌CHL Mortgage Pass-Through Trust, Series 2005- 22, Class 2A1, 2.61%, 11/25/35, Callable 6/25/21 @ 100*(c)		22,678‌
	7,824	‌Citigroup Mortgage Loan Trust, Inc., Series 2005-2, Class 1A4, 2.58%, 5/25/35, Callable 6/25/21 @ 100*(c)		8,078‌
	66,255	‌Citigroup Mortgage Loan Trust, Inc., Series 2004- NCM1, Class 1A2, 6.50%, 7/25/34, Callable 6/25/21 @ 100*		69,410‌
	20,611	‌Countrywide Home Loans, Series 2005-J1, Class 1A8, 5.50%, 2/25/35, Callable 6/25/21 @ 100*		20,889‌
	27,521	‌Countrywide Home Loans, Series 2007-J3, Class A10, 6.00%, 7/25/37, Callable 6/25/21 @ 100*		17,981‌
	42,000‌	Credit Suisse First Boston Mortgage Securities Corp., Series 2005-1, Class 2A1, 5.50%, 2/25/35, Callable 6/25/21 @ 100*		40,678‌
	21,683	‌Credit Suisse Mortgage Capital Certificates, Series 2006-2, Class 3A1, 6.50%, 3/25/36, Callable 6/25/21 @ 100*		7,957‌
	27,395‌	Flagstar Mortgage Trust, Series 2019-2, Class A3, 3.50%, 12/25/49, Callable 9/25/23 @ 100*(b)(c)		27,485‌
	33,232‌	Galton Funding Mortgage Trust, Series 2017-1, Class A21, 3.50%, 7/25/56, Callable 9/25/28 @ 100*(b)(c)		33,706‌
	10,698	‌Lehman Mortgage Trust, Series 2005-3, Class 2A3, 5.50%, 1/25/36, Callable 6/25/21 @ 100*		11,425‌
	9,948‌	Residential Asset Mortgage Products, Inc., Series 2004-SL1, Class A7, 7.00%, 11/25/31, Callable 8/25/21 @ 100*		10,143‌
	31,268	‌Shellpoint Co.-Originator Trust, Series 2017-1, Class A4, 3.50%, 4/25/47, Callable 11/25/22 @ 100*(b)(c)		31,295‌
	36,913‌	Wells Fargo Mortgage Backed Securities Trust, Series 2019-4, Class A3, 3.43%, 9/25/49, Callable 12/25/22 @ 100*(c)		36,986‌
				468,651‌
Subprime Mortgage Backed Securities (0.4%)
	75,428‌	Towd Point Mortgage Trust, Series 2017-6, Class A1, 2.75%, 10/25/57, Callable 7/25/24 @ 100*(b)(c)		77,568‌
	46,921‌	Towd Point Mortgage Trust, Series 2018-1, Class A1, 3.00%, 1/25/58, Callable 7/25/25 @ 100*(b)(c)		48,559‌
	92,006‌	Towd Point Mortgage Trust, Series 2018-2, Class A1, 3.25%, 3/25/58, Callable 11/25/25 @ 100*(b)(c)		95,678‌
				221,805‌
U.S. Government Agency Mortgage Backed Securities (4.0%)
	44,156‌	Fannie Mae, Series 2013-68, Class 10A1, 1.00%, 3/25/42		43,706‌

Shares or
Principal
Amount		Security Description	Value
Mortgage Backed Securities†, continued
U.S. Government Agency Mortgage Backed Securities, continued:
$	41,151	Fannie Mae, Series 2013-18, Class 10A1, 2.00%, 12/25/42	$	42,285‌
	90,229‌	Fannie Mae, Series 2013-23, Class AB, 2.00%, 2/25/43		93,556‌
	78,270‌	Fannie Mae, Series 2013-74, Class 10A1, 2.25%, 6/25/42(c)		81,029‌
	64,535‌	Fannie Mae, Series 2011-146, Class HE, 2.50%, 10/25/41		66,969‌
	60,521‌	Fannie Mae, Series 2017-43, Class PA, 2.50%, 6/25/47		63,613‌
	142,132‌	Fannie Mae, Series 2017-M5, Class A1, 2.74%, 4/25/29		152,077‌
	39,677‌	Fannie Mae, Series 2010-99, Class JU, 3.00%, 8/25/40		41,488‌
	24,916‌	Fannie Mae, Series 2011-118, Class 10A1, 3.00%, 11/25/41		26,701‌
	28,564‌	Fannie Mae, Series 2015-46, Class MD, 3.00%, 5/25/43		28,927‌
	65,959‌	Fannie Mae, Series 2015-59, Class LM, 3.00%, 7/25/45		69,899‌
	199,441‌	Fannie Mae, Series 2018-M12, Class A1, 3.55%, 2/25/30		223,318‌
	185,131‌	Fannie Mae, Series 2018-M13, Class A1, 3.70%, 3/25/30(c)		210,097‌
	12,535‌	Fannie Mae, Series 2012-16, Class K, 4.00%, 10/25/41		13,429‌
	10,832‌	Fannie Mae, 4.50%, 4/1/35, Pool #814522		11,952‌
	12,402‌	Fannie Mae, 5.50%, 10/1/35, Pool #838584		13,814‌
	808‌	Fannie Mae, 6.00%, 5/1/35, Pool #357778		918‌
	3,000‌	Fannie Mae, Series 1999-18, Class LL, 6.50%, 4/18/29		3,362‌
	22,374‌	Freddie Mac, Series 4146, Class 10A1, 1.50%, 10/15/42		22,849‌
	8,021‌	Freddie Mac, 1.89% (H15T1Y + 172 bps), 6/1/28, Pool #605508		8,067‌
	34,110‌	Freddie Mac, Series 4408, Class GA, 2.00%, 9/15/41		35,056‌
	51,663‌	Freddie Mac, Series 4312, Class 10A1, 2.50%, 12/15/41		53,368‌
	64,867‌	Freddie Mac, Series 4395, Class PA, 2.50%, 4/15/37		67,718‌
	58,861‌	Freddie Mac, Series 4316, Class JY, 3.00%, 1/15/44		62,701‌
	61,856‌	Freddie Mac, Series 4348, Class A, 3.00%, 6/15/39		65,648‌
	76,874‌	Freddie Mac, Series 4486, Class PA, 3.00%, 3/15/44		79,577‌
	121,575‌	Freddie Mac, Series 4668, Class KA, 3.00%, 1/15/55		129,142‌
	40,094‌	Freddie Mac, Series 4683, Class PD, 3.00%, 4/15/46		40,940‌
	905‌	Freddie Mac, 5.50%, 1/1/35, Pool #A30935		1,048‌
	2,810‌	Freddie Mac, Series 2302, Class J, 6.50%, 4/15/31		3,197‌
	4,423‌	Freddie Mac, Series 1443, Class I, 7.50%, 12/15/22, Callable 7/15/21 @ 100*		4,591‌
	1,236‌	Government National Mortgage Assoc., Series 2013-104, Class DC, 2.00%, 4/20/40		1,245‌

See notes to the schedule of portfolio investments.

- 28 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Continued

Shares or
Principal
Amount		Security Description		Value
Mortgage Backed Securities†, continued
U.S. Government Agency Mortgage Backed Securities, continued:
$	67,587‌	Government National Mortgage Assoc., Series 2013-69, 2.00%, 9/20/42	$	70,143
	97,513	Government National Mortgage Assoc., Series 2020-5, Class PE, 3.00%, 9/20/49		100,189
	47,710	Government National Mortgage Assoc., Series 2019-85, Class MP, 3.50%, 6/20/49		49,631
	526	Government National Mortgage Assoc., 6.00%, 2/20/26, Pool #2166		582
	35,081	Government National Mortgage Assoc., 6.31%, 3/20/33, Pool #612258		38,669
	3,877	Government National Mortgage Assoc., 7.00%, 7/15/29, Pool #492747		4,255
				2,025,756
Total Mortgage Backed Securities (Cost $3,583,420)				3,651,324
Corporate Bonds (12.2%)
Aerospace & Defense (0.6%)
	275,000	Boeing Co. (The), 3.25%, 2/1/28, Callable 12/1/27 @ 100*		289,566
Airlines (0.4%)
	171,297	United Airlines Pass Through Trust, Series 2020-1, Class A, 5.88%, 4/15/29		189,339
Banks (2.0%)
	440,000	Bank of America Corp., 3.55% (US0003M + 78 bps), 3/5/24, Callable 3/5/23 @ 100*		464,122
	255,000	JPMorgan Chase & Co., 2.52% (SOFR + 204 bps), 4/22/31, Callable 4/22/30 @ 100*		258,796
	250,000	Wells Fargo & Co., 3.00%, 10/23/26		271,096
				994,014
Capital Markets (0.9%)
	250,000	Goldman Sachs Group, Inc., 3.50%, 11/16/26, Callable 11/16/25 @ 100*		273,243
	200,000	LSEGA Financing PLC, 1.38%, 4/6/26, Callable 3/6/26 @ 100*(b)		200,959
				474,202
Consumer Finance (0.4%)
	200,000	Toyota Motor Credit Corp., 1.35%, 8/25/23		204,314
Diversified Financial Services (0.3%)
	160,000	National Rural Utilities Cooperative Finance Corp., 3.25%, 11/1/25, Callable 8/1/25 @ 100*		173,987
Diversified Telecommunication Services (0.6%)
	328,000	AT&T, Inc., 3.50%, 9/15/53, Callable 3/15/53 @ 100*(b)		311,985
Electric Utilities (0.9%)
	210,000	Entergy Mississippi LLC, 3.25%, 12/1/27, Callable 9/1/27 @ 100*		229,279
	200,000	Southern California Edison Co., 3.50%, 10/1/23, Callable 7/1/23 @ 100*		211,936
				441,215
Entertainment (0.3%)
	155,000	The Walt Disney Co., 2.00%, 9/1/29, Callable 6/1/29 @ 100*		154,358
Health Care Providers & Services (1.6%)
	225,000	Advocate Health & Hospitals Corp., 2.21%, 6/15/30, Callable 3/15/30 @ 100*		224,696
	130,000	Ascension Health, Series B, 2.53%, 11/15/29, Callable 8/15/29 @ 100*		134,857
	215,000	Partners Healthcare Syst, Inc., Series 2020, 3.19%, 7/1/49, Callable 1/1/49 @ 100*		220,972

Shares or
Principal
Amount		Security Description	Value
Corporate Bonds, continued
Health Care Providers & Services, continued:
$	180,000	Sutter Health, 3.70%, 8/15/28, Callable 5/15/28 @ 100*	$	198,976
				779,501
Hotels, Restaurants & Leisure (1.2%)
	290,000	Hyatt Hotels Corp., 4.38%, 9/15/28, Callable 6/15/28 @ 100*		316,465
	85,000	Royal Caribbean Cruises, 5.25%, 11/15/22		87,789
	190,000	Starbucks Corp., 3.75%, 12/1/47, Callable 6/1/47 @ 100*		200,195
				604,449
Insurance (0.4%)
	200,000	Jackson National Life Global Funding, 2.65%, 6/21/24 (b)		210,715
Internet & Direct Marketing Retail (0.4%)
	200,000	Expedia Group, Inc., 3.80%, 2/15/28, Callable 11/15/27 @ 100*		215,604
Oil, Gas & Consumable Fuels (0.4%)
	180,000	Marathon Oil Corp., 4.40%, 7/15/27, Callable 4/15/27 @ 100*		202,445
Semiconductors & Semiconductor Equipment (0.9%)
	325,000	Broadcom, Inc., 4.75%, 4/15/29, Callable 1/15/29 @ 100*		371,976
	70,000	Intel Corp., 3.25%, 11/15/49, Callable 5/15/49 @ 100*		71,106
				443,082
Specialty Retail (0.5%)
	220,000	Lowe's Cos., Inc., 4.50%, 4/15/30, Callable 1/15/30 @ 100*		257,197
Technology Hardware, Storage & Peripherals (0.4%)
	200,000	Apple, Inc., 3.20%, 5/11/27, Callable 2/11/27 @ 100*		220,971
Total Corporate Bonds (Cost $5,980,688)				6,166,944
Taxable Municipal Bonds (6.8%)
Massachusetts (0.5%)
	250,000	Massachusetts State College Building Authority Revenue, Series C, 2.44%, 5/1/28, ST APPROP		264,628
Michigan (1.4%)
	240,000	County of Jackson Michigan, GO, 3.73%, 12/1/30, Continuously Callable @ 100		261,426
	210,000	Houghton-Portage Township School District, GO, Series B, 2.70%, 5/1/25, Insured by: Q-SBLF		224,203
	200,000	Michigan State Housing Development Authority Revenue, Series B, 2.96%, 12/1/35, Continuously Callable @ 100		202,463
				688,092
New York (0.5%)
	225,000	New York City Housing Development Corp. Revenue, Class L, 2.79%, 5/1/28, Continuously Callable @ 100		236,988
Ohio (0.7%)
	330,000	County of Cuyahoga Ohio Revenue, 3.48%, 7/1/32, Continuously Callable @ 100		352,113
Oklahoma (0.8%)
	200,000	The University of Oklahoma Revenue, 1.88%, 7/1/28		201,406
	200,000	The University of Oklahoma Revenue, Series C, 2.45%, 7/1/32, Continuously Callable @ 100		201,087
				402,493

See notes to the schedule of portfolio investments.

- 29 -

Schedule of Portfolio Investments	Active Core Fund
May 31, 2021 (Unaudited)	Concluded

Shares or
Principal
Amount		Security Description		Value
Taxable Municipal Bonds, continued
Rhode Island (0.4%)
$	225,000	Rhode Island Convention Center Authority Revenue, 3.15%, 5/15/25	$	231,830
Texas (1.5%)
	360,000	County of Burnet Texas, GO, 4.20%, 3/1/34, Pre-refunded 3/1/24 @ 100		396,563
	350,000	Schertz-Cibolo-Universal City Independent School District, GO, 0.93%, 2/1/26, PSF-GTD.		346,671
				743,234
Utah (0.5%)
	250,000	Utah Transit Authority Revenue, 2.04%, 12/15/31, Continuously Callable @ 100		249,784
Washington (0.5%)
	250,000	Pierce County School District No 10 Tacoma, GO, 1.73%, 12/1/31, SCH BD GTY		248,549
Total Taxable Municipal Bonds (Cost $3,309,733)				3,417,711
U.S. Government Agency Securities (1.1%)
Federal Home Loan Banks
	195,000	0.65%, 4/28/26, Callable 7/28/21 @ 100*(c)		195,070

Shares or
Principal
Amount		Security Description		Value
U.S. Government Agency Securities, continued
Federal Home Loan Banks, continued:
$	150,000	1.00%, 4/28/31, Callable 7/28/21 @ 100*(c)	$	150,004
	200,000	1.30%, 3/17/27, Callable 6/17/21 @ 100*		199,513
Total U.S. Government Agency Securities (Cost $545,000)				544,587
U.S. Treasury Obligations (6.4%)
U.S. Treasury Notes
	667,000	1.13%, 2/15/31		639,174
	1,189,000	1.38%, 10/15/22		1,209,529
	597,000	2.00%, 4/30/24		626,570
	704,000	2.25%, 2/15/27		753,802
Total U.S. Treasury Obligations (Cost $3,188,145)				3,229,075
Investment Companies (4.1%)
	19,002	iShares MSCI EAFE Index Fund ETF, 1.92%		1,535,932
	8,000	iShares MSCI Japan ETF, 1.02%		548,640
Total Investment Companies (Cost $1,369,306)				2,084,572
Investment in Affiliates (3.7%)
	1,382,978	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.01%(e)		1,382,978
	52,409	Cavanal Hill World Energy Fund, Institutional Shares		495,653
Total Investment in Affiliates (Cost $1,872,514)				1,878,631
Total Investments (Cost $38,122,343) - 100.3%				50,620,414
Liabilities in excess of other assets — (0.3)%				(169,205	)
Net Assets - 100.0%			$	50,451,209

(a)	Non-income producing security.
(b)	Represents a restricted security, purchased under Rule 144A, Section 4(2), which is exempt from registration under the Securities Act of 1933, as amended. The security has been deemed liquid according to the policies and procedures adopted by the Board of Trustees.
(c)	The rate for certain asset-backed and mortgage-backed securities may vary based on factors relating to the pool of assets underlying the security. The rate presented is the rate in effect at May 31, 2021.
(d)	Step Bond: Coupon rate is set for an initial period and then increased to a higher coupon rate at a specified date. The rate shown is the rate in effect at May 31, 2021.
(e)	Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.
*	Represents next call date. Additional subsequent call dates and amounts may apply to this security.
^	Represents less than 0.05%.
†	Mortgage backed securities are classified based on the characteristics of their underlying collateral, the fixed vs. variable nature of the obligations, and the credit standing of the mortgagors. The fixed or variable rate nature of securities interest payments to which the fund is entitled may not coincide with the payment nature of the collateral underlying the securities.

ADR	American Depositary Receipt
ETF	Exchange Traded Fund
GO	General Obligation
H15T1Y	1 Year Treasury Constant Maturity Rate
LIBOR	London Interbank Offered Rate
PSF-GTD	Public School Fund Guaranteed
Q-SBLF	Qualified School Bond Loan Fund
REIT	Real Estate Investment Trust
SCH BD GTY	School Board Guaranty
SOFR	Secured Overnight Financing Rate
US0001M	1 Month US Dollar LIBOR
US0003M	3 Month US Dollar LIBOR

See notes to the schedule of portfolio investments.

- 30 -

Schedule of Portfolio Investments	Mid Cap Diverse Leadership Fund
May 31, 2021 (Unaudited)

Shares		Security Description	Value
Common Stocks (91.6%)
Airlines (0.5%)
	307	JetBlue Airways Corp.(a)	$	6,171
Auto Components (2.1%)
	190	BorgWarner, Inc.		9,745
	240	Gentex Corp.		8,520
	42	Lear Corp.		8,121
				26,386
Banks (2.0%)
	83	East West Bancorp, Inc.		6,206
	19	SVB Financial Group(a)		11,075
	77	Western Alliance Bancorp		7,701
				24,982
Biotechnology (0.7%)
	53	Exact Sciences Corp.(a)		5,858
	28	Neurocrine Biosciences, Inc.(a)		2,694
	10	Sarepta Therapeutics, Inc.(a)		757
				9,309
Building Products (0.7%)
	24	Lennox International, Inc.		8,398
Capital Markets (2.9%)
	80	LPL Financial Holdings, Inc.		11,830
	35	MSCI, Inc., Class A		16,385
	47	Nasdaq, Inc.		7,871
				36,086
Chemicals (1.1%)
	214	Axalta Coating Systems, Ltd.(a)		6,942
	38	Celanese Corp., Class A		6,287
				13,229
Commercial Services & Supplies (1.6%)
	57	Cintas Corp.		20,152
Communications Equipment (1.1%)
	39	Arista Networks, Inc.(a)		13,236
Construction & Engineering (1.2%)
	150	Quanta Services, Inc.		14,302
Construction Materials (0.7%)
	48	Vulcan Materials Co.		8,799
Consumer Finance (0.6%)
	166	Synchrony Financial		7,870
Containers & Packaging (1.5%)
	39	Aptar Group, Inc.		5,745
	187	Berry Global Group, Inc.(a)		12,755
				18,500
Diversified Consumer Services (0.5%)
	131	Terminix Global Holdings, Inc.(a)		6,464
Diversified Financial Services (0.5%)
	98	Voya Financial, Inc.		6,421
Diversified Telecommunication Services (0.1%)
	124	Lumen Technologies, Inc.		1,716
Electric Utilities (1.1%)
	41	Alliant Energy Corp.		2,343
	282	PPL Corp.		8,209
	46	Xcel Energy, Inc.		3,261
				13,813
Electrical Equipment (3.1%)
	44	Acuity Brands, Inc.		8,173
	30	Generac Holdings,Inc.(a)		9,861
	142	Regal-Beloit Corp.		20,197
				38,231
Electronic Equipment, Instruments & Components (1.6%)
	122	CDW Corp.		20,181
Energy Equipment & Services (2.0%)
	1,018	Baker Hughes Co.		24,839
Entertainment (2.8%)
	313	Lions Gate Entertainment Corp.,Class A(a)		6,097

Shares		Security Description	Value
Common Stocks, continued
Entertainment, continued:
	15	Spotify Technology SA(a)	$	3,624
	37	Take-TwoInteractive Software, Inc.(a)		6,866
	1,697	Zynga, Inc., Class A(a)		18,395
				34,982
Equity Real Estate Investment Trusts (6.1%)
	175	American Homes 4 Rent, Class A		6,662
	342	CubeSmart		14,976
	268	Duke Realty Corp.		12,451
	115	Equity LifeStyle Properties, Inc.		8,149
	78	Extra Space Storage, Inc.		11,685
	90	Lamar Advertising Co.		9,434
	73	SL Green Realty Corp.		5,783
	89	Welltower, Inc.		6,655
				75,795
Food Products (1.2%)
	93	Ingredion, Inc.		8,828
	35	Kellogg Co.		2,292
	46	Lamb Weston Holdings, Inc.		3,795
				14,915
Gas Utilities (0.7%)
	190	UGI Corp.		8,749
Health Care Equipment & Supplies (5.6%)
	20	Align Technology, Inc.(a)		11,803
	78	Hill-Rom Holdings, Inc.		8,680
	166	Hologic, Inc.(a)		10,468
	26	IDEXX Laboratories, Inc.(a)		14,511
	25	Teleflex, Inc.		10,055
	42	West Pharmaceutical Services, Inc.		14,595
				70,112
Health Care Providers & Services (1.1%)
	9	Chemed Corp.		4,422
	37	Molina Healthcare,Inc.(a)		9,300
				13,722
Health Care Technology (1.5%)
	62	Veeva Systems, Inc.(a)		18,063
Hotels, Restaurants & Leisure (2.8%)
	81	Darden Restaurants, Inc.		11,602
	185	Hilton World wide Holdings, Inc.(a)		23,175
				34,777
Household Products (1.1%)
	78	Church & Dwight Co., Inc.		6,687
	37	The Clorox Co.		6,539
				13,226
Independent Power and Renewable Electricity Producers (0.5%)
	249	AES Corp.		6,327
Insurance (3.8%)
	174	Brighthouse Financial, Inc.(a)		8,467
	173	FNF Group		8,129
	28	The Hanover Insurance Group, Inc.		3,906
	105	The Hartford Financial Services Group, Inc.		6,862
	656	Unum Group		20,316
				47,680
Internet & Direct Marketing Retail (1.7%)
	131	Etsy, Inc.(a)		21,580
IT Services (7.0%)
	236	Alliance Data Systems Corp.		28,568
	215	DXC Technology Co.(a)		8,153
	83	Leidos Holdings, Inc.		8,528
	43	MongoDB, Inc.(a)		12,553
	20	Okta,Inc.(a)		4,449
	15	Twilio, Inc., Class A(a)		5,040
	88	VeriSign,Inc.(a)		19,353
				86,644

See notes to the schedule of portfolio investments.

- 31 -

Schedule of Portfolio Investments	Mid Cap Diverse Leadership Fund
May 31, 2021 (Unaudited)	Concluded

Shares		Security Description	Value
Common Stocks, continued
Leisure Products (0.4%)
	56	Hasbro, Inc.	$	5,374
Life Sciences Tools & Services (2.5%)
	21	Agilent Technologies, Inc.		2,901
	21	Charles River Laboratories International, Inc.(a)		7,098
	7	Mettler-Toledo International, Inc.(a)		9,106
	36	Waters Corp.(a)		11,601
				30,706
Machinery (3.5%)
	242	Allison Transmission Holdings, Inc.		10,239
	95	Graco, Inc.		7,194
	23	IDEX Corp.		5,121
	138	The Timken Co.		12,206
	78	The Toro Co.		8,665
				43,425
Media (0.1%)
	1	Cable One, Inc.		1,816
Mortgage Real Estate Investment Trusts (2.1%)
	1,430	AGNC Investment Corp.		26,512
Multiline Retail (0.1%)
	42	Nordstrom, Inc.(a)		1,409
Multi-Utilities (1.4%)
	97	MDU Resources Group, Inc.		3,265
	108	Public Service Enterprise Group, Inc.		6,709
	74	WEC Energy Group, Inc.		6,949
				16,923
Oil, Gas & Consumable Fuels (1.0%)
	555	EQT Corp.(a)		11,588
	27	ONEOK, Inc.		1,424
				13,012
Personal Products (0.1%)
	124	Coty, Inc.(a)		1,105
Professional Services (0.7%)
	24	Manpower Group, Inc.		2,904
	64	Robert Half International, Inc.		5,682
Road & Rail (1.7%)				8,586
	79	Old Dominion Freight Line, Inc.		20,971
Semiconductors & Semiconductor Equipment (4.1%)
	37	KLA-Tencor Corp.		11,725
	317	ON Semiconductor Corp.(a)		12,692

Shares		Security Description		Value
Common Stocks, continued
Semiconductors & Semiconductor Equipment, continued:
	40	Qorvo, Inc.(a)	$	7,309
	59	Skyworks Solutions, Inc.		10,030
	74	Xilinx, Inc.		9,398
				51,154
Software (5.2%)
	53	Aspen Technology, Inc.(a)		7,233
	4	Cadence Design Systems, Inc.(a)		508
	70	Citrix Systems, Inc.		8,047
	21	DocuSign, Inc.(a)		4,234
	57	Fortinet, Inc.(a)		12,457
	58	Manhattan Associates, Inc.(a)		7,887
	247	New Relic, Inc.(a)		15,482
	45	Zscaler, Inc.(a)		8,739
				64,587
Specialty Retail (3.8%)
	118	AutoNation, Inc.(a)		12,051
	7	AutoZone, Inc.(a)		9,846
	222	Foot Locker, Inc.		14,051
	22	O'Reilly Automotive, Inc.(a)		11,773
				47,721
Technology Hardware, Storage & Peripherals (0.7%)
	151	HP, Inc.		4,414
	63	Western Digital Corp.(a)		4,739
				9,153
Textiles, Apparel & Luxury Goods (1.3%)
	597	Hanesbrands, Inc.		11,665
	13	Lululemon Athletica, Inc.(a)		4,201
				15,866
Trading Companies & Distributors (1.0%)
	162	Air Lease Corp.		7,624
	55	MSC Industrial Direct Co., Inc.		5,192
				12,816
Water Utilities (0.4%)
	30	American Water Works Co., Inc.		4,651
Total Common Stocks (Cost $815,283)				1,141,444
Investment in Affiliates (6.2%)
	77,264	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.01%(b)		77,264
Total Investment in Affiliates (Cost $77,264)				77,264
Total Investments (Cost $892,547) - 97.8%				1,218,708
Other assets in excess of liabilities — 2.2%				27,389
Net Assets - 100.0%			$	1,246,097

(a) Non-income producing security.

(b) Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.

See notes to the schedule of portfolio investments.

- 32 -

Schedule of Portfolio Investments	Opportunistic Fund
May 31, 2021 (Unaudited)

Shares or
Principal
Amount		Security Description	Value
Common Stocks (77.9%)
Aerospace & Defense (3.9%)
	23,273	Parsons Corp.(a)	$	921,843
	8,882	The Boeing Co.(a)		2,194,032
				3,115,875
Airlines (1.5%)
	20,485	United Airlines Holdings, Inc.(a)		1,195,300
Automobiles (1.7%)
	93,818	Ford Motor Co.(a)		1,363,176
Banks (4.9%)
	88,765	Barclays PLC ADR		939,134
	10,243	JPMorgan Chase & Co.		1,682,310
	20,490	Truist Financial Corp.		1,265,872
				3,887,316
Beverages (2.0%)
	27,981	The Coca-Cola Co.		1,547,069
Biotechnology (3.9%)
	13,267	AbbVie, Inc.		1,501,825
	14,629	Exact Sciences Corp.(a)		1,616,943
				3,118,768
Capital Markets (1.2%)
	61,450	Deutsche Bank AG(a)		927,280
Commercial Services & Supplies (1.6%)
	15,725	Stericycle, Inc.(a)		1,235,356
Communications Equipment (1.6%)
	6,155	Motorola Solutions, Inc.		1,263,683
Construction & Engineering (1.5%)
	8,533	Jacobs Engineering Group, Inc.		1,212,369
Diversified Telecommunication Services (1.3%)
	34,145	AT&T, Inc.		1,004,887
Electronic Equipment, Instruments & Components (2.1%)
	38,640	Corning, Inc.		1,685,863
Energy Equipment & Services (1.1%)
	28,685	Schlumberger NV		898,701
Food & Staples Retailing (1.7%)
	3,497	Costco Wholesale Corp.		1,322,810
Health Care Equipment & Supplies (1.5%)
	30,091	Cutera, Inc.(a)		1,154,893
Health Care Providers & Services (1.5%)
	8,880	Quest Diagnostics, Inc.		1,169,230
Hotels, Restaurants & Leisure (5.4%)
	10,857	Airbnb, Inc., Class A(a)		1,524,323
	51,152	Norwegian Cruise Line Holdings, Ltd.(a)		1,631,749
	24,037	Six Flags Entertainment Corp.(a)		1,092,001
				4,248,073
Industrial Conglomerates (1.6%)
	6,150	3M Co		1,248,696
Interactive Media & Services (1.6%)
	3,929	Facebook, Inc., Class A(a)		1,291,580
Internet & Direct Marketing Retail (4.7%)
	1,152	Amazon.com, Inc.(a)		3,712,977
IT Services (2.9%)
	3,999	Accenture PLC, Class A.		1,128,358
	8,195	International Business Machines Corp.		1,177,949
				2,306,307
Metals & Mining (2.2%)
	19,807	Rio Tinto PLC ADR		1,731,726
Oil, Gas & Consumable Fuels (3.9%)
	49,299	BP PL CADR		1,293,113
	27,310	HollyFrontier Corp.		886,755
	14,345	Marathon Petroleum Corp..		886,521
				3,066,389

Shares or
Principal
Amount		Security Description	Value
Common Stocks, continued
Pharmaceuticals (1.1%)
	252,773	MediWound, Ltd.(a)	$	859,428
Road & Rail (3.5%)
	29,604	Uber Technologies, Inc.(a)		1,504,771
	5,663	Union Pacific Corp		1,272,646
				2,777,417
Semiconductors & Semiconductor Equipment (4.1%)
	30,725	Infineon Technologies AG ADR		1,244,055
	9,549	NXP Semiconductors NV		2,018,850
				3,262,905
Software (4.5%)
	19,120	Anaplan, Inc.(a)		984,871
	50,327	Dropbox, Inc., Class A(a)		1,376,443
	4,435	RingCentral, Inc., Class A(a)		1,164,055
				3,525,369
Technology Hardware, Storage & Peripherals (6.5%)
	21,854	Apple, Inc.		2,723,227
	15,725	NetApp, Inc.		1,216,643
	61,475	Pure Storage, Inc.(a)		1,171,099
				5,110,969
Textiles, Apparel & Luxury Goods (1.4%)
	13,937	VF Corp.		1,111,058
Trading Companies & Distributors (1.5%)
	12,295	MSC Industrial Direct Co., Inc.		1,160,648
Total Common Stocks (Cost $56,825,043)				61,516,118
Corporate Bonds (17.1%)
Airlines (2.8%)
$	1,851,000	Delta Air Lines, Inc., 7.38%, 1/15/26, Callable 12/15/25 @ 100*		2,180,161
Hotels, Restaurants & Leisure (4.6%)
	1,161,000	Marriott International, Inc., 3.13%, 6/15/26, Callable 3/15/26 @ 100		1,233,867
	2,079,000	Royal Caribbean Cruises, Ltd., 7.50%, 10/15/27 .		2,442,825
				3,676,692
Machinery (2.3%)
	1,554,000	Wabtec Corp., 4.95%, 9/15/28, Callable 6/15/28 @ 100*		1,791,468
Oil, Gas & Consumable Fuels (7.4%)
	1,280,000	Hess Corp., 4.30%, 4/1/27, Callable 1/1/27 @ 100*		1,425,415
	2,041,000	HollyFrontier Corp., 5.88%, 4/1/26, Callable 1/1/26 @ 100*		2,356,572
	2,057,000	Matador Resources Co., 5.88%, 9/15/26, Callable 9/15/21 @ 104*		2,064,714
				5,846,701
Total Corporate Bonds (Cost $12,793,330)				13,495,022
Investment Companies (2.3%)
	34,811	iShares MSCI Eurozone ETF, 1.86%		1,765,614
Total Investment Companies (Cost $1,702,093)				1,765,614
Investment in Affiliates (2.5%)
	1,996,859	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.01%(b)		1,996,859
Total Investment in Affiliates (Cost $1,996,859)				1,996,859
Total Investments (Cost $73,317,325) - 99.8%				78,773,613
Other assets in excess of liabilities — 0.2%				191,296
Net Assets - 100.0%			$	78,964,909

See notes to the schedule of portfolio investments.

- 33 -

Schedule of Portfolio Investments	Opportunistic Fund
May 31, 2021 (Unaudited)	Concluded

(a) Non-income producing security.

(b) Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.

* Represents next call date. Additional subsequent call dates and amounts may apply to this security.

ADR	American Depositary Receipt
ETF	Exchange Traded Fund

See notes to the schedule of portfolio investments.

- 34 -

Schedule of Portfolio Investments	World Energy Fund
May 31, 2021 (Unaudited)

Shares or
Principal
Amount		Security Description	Value
Common Stocks (93.0%)
Auto Components (1.7%)
	3,300	Aptiv PLC(a)	$	496,386
Chemicals (3.5%)
	2,000	Albemarle Corp.		334,160
	45,000	Umicore SA ADR		675,450
				1,009,610
Electric Utilities (0.4%)
	42	ALLETE, Inc.		2,893
	22	American Electric Power Co., Inc.		1,892
	284	Duke Energy Corp.		28,463
	31	Evergy, Inc.		1,922
	62	Fortis, Inc.		2,830
	792	NextEra Energy, Inc.		57,990
	30	Otter Tail Corp.		1,439
	25	Pinnacle West Capital Corp.		2,115
	399	The Southern Co.		25,504
				125,048
Electrical Equipment (6.6%)
	25,000	Bloom Energy Corp., Class A(a)		604,250
	12,000	Sunrun, Inc.(a)		536,640
	10,000	TPI Composites, Inc.(a)		483,000
	23,000	Vestas Wind Systems A/S ADR		299,690
				1,923,580
Energy Equipment & Services (11.8%)
	44,012	Baker Hughes Co.		1,073,893
	38,948	Halliburton Co.		874,382
	343	Helmerich & Payne, Inc.		9,690
	41,209	Schlumberger NV		1,291,078
	9,485	Tenaris SA ADR		217,301
				3,466,344
Gas Utilities (0.0%^)
	45	Atmos Energy Corp.		4,463
	20	Chesapeake Utilities Corp.		2,291
	49	National Fuel & Gas Co.		2,543
	30	Northwest Natural Holding Co.		1,586
	27	Southwest Gas Holdings, Inc.		1,782
				12,665
Independent Power and Renewable Electricity Producers (0.1%)
	169	AES Corp.		4,295
	152	Atlantica Yield PLC		5,525
	107	NRG Energy, Inc.		3,440
	63	Ormat Technologies, Inc.		4,350
	70	Sunnova Energy International, Inc.(a)		2,044
	124	Vistra Corp.		2,005
				21,659
Metals & Mining (2.7%)
	8,500	Freeport-McMoRan, Inc.		363,120
	5,000	Rio Tinto PLC ADR		437,150
				800,270
Multi-Utilities (0.6%)
	19	Consolidated Edison, Inc.		1,467
	729	Dominion Resources, Inc.		55,506
	32	DTE Energy Co.		4,416
	259	MDU Resources Group, Inc.		8,718
	869	National Grid PLC ADR		58,110
	275	Sempra Energy		37,260
	27	WEC Energy Group, Inc.		2,536
				168,013
Oil, Gas & Consumable Fuels (59.6%)
	50,000	APA Corp.		1,040,000
	49,270	BP PLC ADR		1,292,352
	3,354	Chevron Corp.		348,112

Shares or
Principal
Amount		Security Description	Value
Common Stocks, continued
Oil, Gas & Consumable Fuels, continued:
	12,500	Cimarex Energy Co.	$	846,875
	16,161	Conoco Phillips		900,814
	37,000	Continental Resources, Inc.		1,205,090
	42,500	Devon Energy Corp.		1,128,800
	11,000	Diamondback Energy, Inc.		880,770
	15,446	Enbridge, Inc.		594,362
	3,084	EOG Resources, Inc.		247,769
	5,012	Exxon Mobil Corp.		292,550
	60,000	Galp Energia SGPS SA ADR		376,800
	7,800	Hess Corp.		653,796
	15,000	HollyFrontier Corp.		487,050
	1,636	Kinder Morgan, Inc.		30,004
	90,000	Marathon Oil Corp.		1,089,900
	22,680	Marathon Petroleum Corp.		1,401,624
	14,049	ONEOK, Inc.		740,944
	9,317	Pembina Pipeline Corp.		301,125
	9,042	Phillips 66		761,517
	3,500	Pioneer Natural Resources Co.		532,665
	1,191	Royal Dutch Shell PLC ADR, Class A		45,985
	10,375	TC Energy Corp.		529,748
	14,937	TOTAL SE ADR		697,409
	12,493	Valero Energy Corp.		1,004,437
				17,430,498
Semiconductors & Semiconductor Equipment (4.9%)
	6,000	First Solar, Inc.(a)		456,660
	13,000	Infineon Technologies AG ADR		526,370
	2,200	NXP Semiconductors NV		465,124
				1,448,154
Water Utilities (1.1%)
	237	American States Water Co.		18,811
	1,142	American Water Works Co., Inc.		177,033
	2,597	Essential Utilities, Inc.		124,136
	24	Middlesex Water Co.		2,063
	35	SJW Group		2,256
				324,299
Total Common Stocks (Cost $20,755,080)				27,226,526
Corporate Bonds (5.3%)
Diversified Financial Services (0.9%)
$	250,000	Total Capital International SA, 2.75%, 6/19/21		250,321
Oil, Gas & Consumable Fuels (4.4%)
	250,000	Callon Petroleum Co., 6.13%, 10/1/24, Callable 7/12/21 @ 103 *		230,100
	300,000	HollyFrontier Corp., 5.88%, 4/1/26, Callable 1/1/26 @ 100*		346,385
	200,000	Matador Resources Co., 5.88%, 9/15/26, Callable 9/15/21 @ 104 *		200,750
	200,000	Suncor Energy, Inc., 3.60%, 12/1/24, Callable 9/1/24 @ 100*		217,454
	300,000	Valero Energy Corp., 2.15%, 9/15/27, Callable 7/15/27 @ 100*		301,679
				1,296,368
Total Corporate Bonds (Cost $1,538,398)				1,546,689
Investment in Affiliates (1.3%)
	376,253	Cavanal Hill Government Securities Money Market Fund,Select Shares,0.01%(b)		376,253
Total Investment in Affiliates (Cost $376,253)				376,253

See notes to the schedule of portfolio investments.

- 35 -

Schedule of Portfolio Investments	World Energy Fund
May 31, 2021 (Unaudited)	Concluded

Shares or
Principal
Amount	Security Description	Value
Investment in Affiliates, continued
Total Investments (Cost $22,669,731) - 99.6%		$	29,149,468‌
Other assets in excess of liabilities — 0.4%			111,809‌
Net Assets - 100.0%		$	29,261,277‌

The Advisor has determined that 48.1% of the Fund’s net assets comprise securities of issuers which are either foreign domiciled or derive more than 50% of its assets, revenue or income outside of the United States.

(a) Non-income producing security.

(b) Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.

* Represents next call date. Additional subsequent call dates and amounts may apply to this security.

^ Represents less than 0.05%.

ADR American Depositary Receipt

See notes to the schedule of portfolio investments.

- 36 -

Schedule of Portfolio Investments	Hedged Income Fund
May 31, 2021 (Unaudited)

Shares		Security Description	Value
Common Stocks (96.5%)
Beverages (6.5%)
	3,400	PepsiCo, Inc.	$	502,996
	10,800	The Coca-Cola Co.		597,132
				1,100,128
Biotechnology (3.2%)
	4,800	AbbVie, Inc.		543,360
Capital Markets (4.1%)
	800	BlackRock, Inc.		701,632
Chemicals (4.3%)
	10,600	Dow, Inc.		725,252
Communications Equipment (3.2%)
	10,400	Cisco Systems, Inc.		550,160
Containers & Packaging (3.7%)
	4,300	Packaging Corp. of America		639,195
Diversified Telecommunication Services (8.0%)
	24,300	AT&T, Inc.		715,149
	11,600	Verizon Communications, Inc.		655,284
				1,370,433
Electric Utilities (10.1%)
	5,500	American Electric Power Co., Inc.		473,000
	7,900	Duke Energy Corp.		791,738
	5,400	Pinnacle West Capital Corp.		456,732
				1,721,470
Electrical Equipment (2.6%)
	4,600	Emerson Electric Co.		440,174
Electronic Equipment, Instruments & Components (2.7%)
	10,400	Corning, Inc.		453,752
Equity Real Estate Investment Trusts (7.1%)
	3,300	Crown Castle International Corp.		625,350
	16,500	STAG Industrial, Inc.		589,215
				1,214,565
Household Durables (3.1%)
	3,700	Garmin, Ltd.		526,288

Shares		Security Description	Value
Common Stocks, continued
Industrial Conglomerates (4.3%)
	3,600	3M Co.	$	730,944‌
Multiline Retail (3.7%)
	2,800‌	Target Corp.		635,376‌
Oil, Gas & Consumable Fuels (9.0%)
	6,600	ONEOK, Inc.		348,084‌
	8,200‌	Phillips 66		690,604‌
	10,700‌	TOTAL SE ADR		499,583‌
				1,538,271‌
Pharmaceuticals (4.3%)
	8,000‌	AstraZeneca PLC ADR		454,160‌
	3,600‌	Merck & Co., Inc.		273,204‌
				727,364‌
Semiconductors & Semiconductor Equipment (8.0%)
	1,900	Broadcom, Inc.		897,427‌
	2,500‌	Texas Instruments, Inc.		474,550‌
				1,371,977‌
Specialty Retail (2.8%)
	1,500	The Home Depot, Inc.		478,365‌
Textiles, Apparel & Luxury Goods (2.0%)
	4,200	‌  VF Corp.		334,824‌
Trading Companies & Distributors (3.8%)
	6,900	‌  MSC Industrial Direct Co., Inc.		651,360‌
Total Common Stocks (Cost $15,234,472)				16,454,890‌
Purchased Option (1.0%)^
	380	SPDR S&P 500 ETF Trust, 0.00%		170,240‌
Total Purchased Option (Cost $238,173)				170,240‌
Investment in Affiliates (2.3%)
	400,289‌	Cavanal Hill Government Securities Money Market Fund, Select Shares, 0.01%(a)		400,289‌
Total Investment in Affiliates (Cost $400,289)				400,289‌
Total Investments (Cost $15,872,934) - 99.8%				17,025,419‌
Other assets in excess of liabilities — 0.2%				41,380‌
Net Assets - 100.0%			$	17,066,799‌

(a) Money market investment. The rate presented on the Schedule of Portfolio Investments is the rate in effect at May 31, 2021.

ADR American Depositary Receipt

ETF Exchange Traded Fund

^ See Options table below for more details.

At May 31, 2021, the Fund's exchange traded options purchased were as follows:

	Put/		Expiration			Notional
Description	Call	Strike Price	Date	Contracts		Amount(a)		Fair Value
SPDR S&P 500 ETF Trust	Put	365.00 USD	9/17/21		380	$	138,700	$	170,240
Total (Cost $238,173)								$	170,240

At May 31, 2021, the Fund's exchange traded options written were as follows:

	Put/		Expiration			Notional
Description	Call	Strike Price	Date	Contracts		Amount(a)		Fair Value
3M Co.	Call	210.00 USD	6/18/21		34	$	7,140‌	$	(2,414	)
Abbvie, Inc.	Call	120.00 USD	6/25/21		48		5,760‌		(2,400	)
American Electric Power Co., Inc.	Call	90.00 USD	6/18/21		55		4,950‌		(825	)

See notes to the schedule of portfolio investments.

- 37 -

Schedule of Portfolio Investments	Hedged Income Fund
May 31, 2021 (Unaudited)	Concluded

AstraZeneca PLC-SPONS ADR	Call	57.50	USD	6/18/21	80	$	4,600	$	(5,680	)
AT&T, Inc.	Call	32.00	USD	6/18/21	225		7,200‌		(900	)
BlackRock, Inc.	Call	870.00	USD	6/18/21	1		870‌		(1,800	)
BlackRock, Inc.	Call	890.00	USD	6/18/21	6		5,340‌		(5,280	)
Broadcom, Inc.	Call	490.00	USD	6/18/21	18		8,820‌		(11,142	)
Cisco Systems, Inc.	Call	54.00	USD	6/25/21	104		5,616‌		(6,240	)
Coca-Cola Co. (The)	Call	57.50	USD	6/18/21	102		5,865		(918	)
Corning, Inc.	Call	48.00	USD	6/18/21	104		4,992‌		(832	)
Crown Castle International Corp.	Call	190.00	USD	6/18/21	31		5,890‌		(8,680	)
Dow, Inc.	Call	70.00	USD	6/18/21	100		7,000‌		(9,200	)
Duke Energy Corp.	Call	100.00	USD	6/18/21	77		7,700‌		(12,705	)
Emerson Electric Co.	Call	100.00	USD	6/18/21	46		4,600‌		(1,380	)
Garmin, Ltd.	Call	150.00	USD	6/18/21	37		5,550‌		(925	)
Home Depot, Inc. (The)	Call	340.00	USD	6/18/21	11		3,740‌		(495	)
Home Depot, Inc. (The)	Call	355.00	USD	6/18/21	4		1,420‌		(52	)
Merck & Co., Inc.	Call	82.50	USD	6/18/21	35		2,888		(175	)
MSC Industrial Direct Co.	Call	100.00	USD	6/18/21	65		6,500‌		(1,463	)
ONEOK, Inc.	Call	58.00	USD	6/18/21	66		3,828‌		(990	)
Packaging Corp. of America	Call	155.00	USD	6/18/21	43		6,665‌		(3,010	)
PepsiCo, Inc.	Call	150.00	USD	6/18/21	6		900‌		(474	)
PepsiCo, Inc.	Call	147.00	USD	6/25/21	28		4,116‌		(6,664	)
Phillips 66	Call	92.50	USD	6/18/21	82		7,585‌		(1,845	)
Pinnacle West Capital	Call	90.00	USD	6/18/21	54		4,860‌		(810	)
Target Corp.	Call	230.00	USD	6/18/21	5		1,150‌		(1,335	)
Target Corp.	Call	215.00	USD	6/25/21	23		4,945‌		(31,050	)
Texas Instruments, Inc.	Call	195.00	USD	6/18/21	24		4,680‌		(4,584	)
Total SE-SPON ADR	Call	50.00	USD	6/18/21	105		5,250‌		(1,260	)
Verizon Communications, Inc.	Call	58.00	USD	6/25/21	97		5,626‌		(3,492	)
Verizon Communications, Inc.	Call	59.00	USD	6/25/21	19		1,121‌		(380	)
VF Corp.	Call	90.00	USD	6/18/21	28		2,520‌		(560	)
VF Corp.	Call	92.50	USD	6/18/21	14		1,295‌		(350	)
Total (Premiums $(229,425))								$	(130,310	)

(a) Notional amount is expressed as the number of contracts multiplied by the strike price of the underlying asset.

See notes to the schedule of portfolio investments.

- 38 -

Notes to Schedules of Portfolio Investments 

May 31, 2021 (Unaudited)

1. Restricted Securities:

A restricted security is a security that has been purchased through a private offering and cannot be resold to the general public without prior registration under the Securities Act of 1933 (the “1933 Act”) or pursuant to the resale limitations provided by Rule 144 under the 1933 Act or an exemption from the registration requirements of the 1933 Act. Whether a restricted security is illiquid is determined pursuant to guidelines established by the Board. Not all restricted securities are considered illiquid. The illiquid, restricted securities held as of May 31, 2021 are identified below:

		Acquisition		Principal		Fair
Security	Acquisition Date	Cost		Amount		Value
Limited Duration Fund:
Cazenovia Creek Funding II LLC, Series 2018-1A, A, 3.56%, 7/15/30	8/22/18	$	302,279	$	302,309	$	303,748‌
Sun Trust Student Loan Trust, Series 2006-1A, B, 0.45%, 10/28/37	5/26/17 and 4/11/18		758,706		826,717		759,541

		Acquisition		Principal		Fair
Security	Acquisition Date	Cost		Amount		Value
Strategic Enhanced Yield Fund:
Amur Equipment Finance Receivables LLC, Series 2021-1A, E, 4.13%, 3/20/28	4/14/21	$	599,953	$	600,000	$	599,459‌
Brean Asset Backed Securities Trust, Series 2021-RM1, M1, 1.60%, 10/25/63	3/25/21		315,486		345,000		315,486

2. Affiliated Transactions:

A summary of each Fund’s investment in an affiliated money market fund (Government Securities Money Market Fund, Select Shares) for the period ending May 31, 2021 is noted below:

								Net		Net Change
								Realized		in Unrealized
	Fair Value							Gains/		Appreciation/		Fair Value		Shares as of		Dividend
Fund	8/31/20		Purchases		Sales			(Losses)		Depreciation		5/31/21		5/31/21		Income
Limited Duration Fund	$	6,439,763	$	61,367,670	$	(64,603,190	)	$	—	$	—	$	3,204,243		3,204,243	$	242
Moderate Duration Fund		3,443,883		14,111,353		(16,436,792	)		—		—		1,118,444		1,118,444		69
Bond Fund		2,590,008		36,761,514		(34,091,064	)		—		—		5,260,458		5,260,458		231
Strategic Enhanced Yield Fund		2,048,668		22,661,615		(21,962,971	)		—		—		2,747,312		2,747,312		112
Ultra Short Tax-Free Income Fund		1,847,685		14,648,589		(16,439,210	)		—		—		57,064		57,064		32
Active Core Fund		1,213,800		12,015,181		(11,846,003	)		—		—		1,382,978		1,382,978		92
Mid Cap Diverse Leadership Fund		37,581		436,035		(396,352	)		—		—		77,264		77,264		2
Opportunistic Fund		2,970,000		67,852,588		(68,825,729	)		—		—		1,996,859		1,996,859		192
World Energy Fund		330,331		13,021,844		(12,975,922	)		—		—		376,253		376,253		37
Hedged Income Fund		—		13,634,199		(13,233,910	)		—		—		400,289		400,289		20
	$	20,921,719	$	256,510,588	$	(260,811,143	)	$	—	$	—	$	16,621,164		16,621,164	$	1,029

A summary of the Opportunistic Fund’s investment in an affiliated money market fund for the period ending May 31, 2021 is noted below:

								Net		Net Change
								Realized		in Unrealized
	Fair Value							Gains/		Appreciation/		Fair Value		Shares as of		Dividend
Fund	8/31/20		Purchases		Sales			(Losses)		Depreciation		5/31/21		5/31/21		Income
U.S. Treasury Fund, Select Shares	$	47,026	$	7,503,648	$	(7,550,674	)		—	$	—	$	—		—	$	—
	$	47,026	$	7,503,648	$	(7,550,674	)	$	—	$	—	$	—		—	$	—

A summary of the Active Core Fund’s investment in an affiliated fund for the period ending May 31, 2021 is noted below:

							Net		Net Change
							Realized		in Unrealized
	Fair Value						Gains/		Appreciation/		Fair Value		Shares as of		Dividend
Fund	8/31/20		Purchases		Sales		(Losses)		Depreciation		5/31/21		5/31/21		Income
World Energy Fund, Institutional Shares	$	322,919	$	—	$	—	$	—	$	172,734	$	495,653	$	52,409	$	5,327
	$	322,919	$	—	$	—	$	—	$	172,734	$	495,653	$	52,409	$	5,327

- 39 -